“Bye, I love you.” That quiet goodbye was the last message missing Texas teen Camila “Cami” Mendoza Olmos sent before leaving home for a short Christmas Eve walk at 11:47 PM — and then, everything went silent.

The best friend of a Texas teenager who mysteriously vanished from her home early Christmas Eve morning shared the gone girl’s heartbreaking last words with The Post.

Camila “Cami” Mendoza Olmos, 19, was last seen outside her San Antonio home just before 7 a.m. on Wednesday wearing pajama shorts and a hoodie.

Her childhood best friend, Camila Estrella, said the pair were on the phone Tuesday to make plans to go dress shopping, to look for an outfit for Estrella’s boyfriend’s family event.

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Camila “Cami” Mendoza Olmos, 19, disappeared after going outside her home on Christmas Eve morning around 7 a.m.Bexar County Sheriff’s Office
“She said, ‘Bye Cami, I love you,’” recalled a shaken Estrella.

“She was someone that was just full of love,” she said, adding the two spoke every day.

“This is so random, we never expected this.”

Olmos, wearing baby blue pajama shorts, a black hoodie and white shoes, was captured on video outside the house rummaging through her car before the footage cut off, the Bexar County Sheriff’s Office said.

The disappearance has left the community shaken and the family desperate to find the Northwest Vista Community College student.

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Olmos’ childhood best friend shared the gone girl’s heartbreaking last words with The Post, saying the pair was on the phone Tuesday to make plans to go dress shopping, to look for an outfit for Estrella’s boyfriend’s family event.Bexar County Sheriff’s Office

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Olmos was captured on video outside the house rummaging through her car before the footage cut off.KSAT

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Her aunt Nancy Olmos said, “This was not a Christmas for us. It is a nightmare.”KSAT
“It’s just not Cami,” said aunt Nancy Olmos. “We knew something happened.”

The aunt had taken Olmos and her mother in when the two first moved to Texas from California in 2012.

“This was not a Christmas for us. It is a nightmare,” she said, adding that relatives who had gone out of town for the holidays quickly returned to help find her.

Olmos’ mom Rosario woke Wednesday unable to find her daughter, who typically took an early morning walk, according to reports.

By 9:30 a.m., Rosario Olmos called her daughter’s phone, only to find it on a bed with no battery, the Spanish-speaker told The Post, as Nancy Olmos translated for her.

The mom then called cops, who arrived with scent tracking dogs but have been unable to find the business student.

Camilla Olmos is considered “possibly endangered,” police said in their missing person alert.

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The disappearance of 19-year-old Texas teen Camila Mendoza has taken a chilling turn after her ex-boyfriend publicly vowed to keep searching “until we find her.”

The ex-boyfriend of Camila “Cami” Mendoza Olmos has been assisting in the search for the missing Texas teen — and vowed to continue doing so until she’s found.

Nathan Gonzales spoke to local media on Saturday as he and other members of the community came together to look for Olmos, who mysteriously vanished just before 7 a.m. on Christmas Eve and was last seen outside her home in San Antonio.

Nathan Gonzales, the doting ex-boyfriend of Camila “Cami” Mendoza Olmos, has vowed to keep searching for the missing Texas teen until she’s found. KABB FOX 29 News
“They’re going through a nightmare,” Gonzales said of Olmos’s family during a search party for the missing teen.

Gonzales, who had dated the missing 19-year-old, told Fox San Antonio on Saturday that he’s fully committed to searching for Olmos — whom he described as exceptionally “loving” — until the moment she’s found.

“So that’s why we’re all out here to support her family and be there for them, because not only do they need us right now. But they need the Lord Jesus to be with her and protect Cami because we know with the Lord that she’s gonna come back home.

“She’s a very loving person. She’s the person that always puts others before herself, and she loves everybody no matter what, and you know, this is just not like her because like I said, she’s just a loving person and would’ve never thought that something like this would happen,” Gonzales continued.

Gonzales has since dedicated much of his social media presence to happy pictures of the couple together and flyers asking for members to join search efforts as the teen’s disappearance moves into its fifth day. Instagram/nate gonzales
“I’ll be here all day… We’ve been here for three days, going on four days straight, and we’re not going to stop until we find her.”

Gonzales has since dedicated much of his social media presence to happy pictures of the couple together and flyers asking for members to join search efforts as the teen’s disappearance moves into its fifth day.

Olmos had recently ended a romantic relationship, according to the Bexar County Sheriff’s Department.

The breakup was described as amicable, and police are not currently working on the assumption that her ex is involved in her disappearance, cops said.

Gonzales, however, has not been officially identified by authorities as the subject of the recent breakup, and it is unclear when the pair was last together.

The search for Olmos has extended into Mexico as state authorities fear she may have been taken over the US-Mexican border. Instagram/nate gonzales
Gonzales added that he has answered detectives’ questions about his relationship with Olmos and any places he believed she could have vanished to, as authorities continue the desperate search.

“I was willing to give any information that I can to bring her home. Because at the end of the day that’s what I want is to bring her home for her family,” Gonzales said.

The search for Olmos has extended into Mexico as state authorities fear she may have been taken over the US-Mexican border.

In the security video of the night of her disappearance, Olmos, a Mexican national, was seen searching for something inside her vehicle before closing the door and vanishing from the scene.

She only had her car keys and driver’s license with her, but not her cell phone, which was found on her bed, family members told the police.

Bexar County Sheriff Javier Salazar said investigators fear the teen may be in “imminent danger.” Bexar County Sheriff’s Office
It is believed that she left on foot.

There have been no leads on Olmos’s whereabouts, and neither kidnapping, human trafficking, nor the teen leaving on her own accord has been ruled out by the sheriff.

Bexar County Sheriff Javier Salazar said investigators fear the teen may be in “imminent danger.”

Local police have been collaborating with both the FBI and the Department of Homeland Security (DHS) to detect whether she crossed the border.