Are Kristen Stewart and girlfriend Alicia Cargile married? The answer maybe a big NO for now but that does not stop them from acting like a real married couple. Meanwhile, Stewart's ex-lover Robert Pattinson is enjoying his romance with girlfriend FKA Twigs.

According to a Radar Online source, Stewart "could care less" about what's going on between her "Twilight" leading man and the British songstress. For now, she is focused on being the best girlfriend to Cargile.

"They are getting very serious," the source said, adding that Stewart and Cargile are frequently spotted holding each other's hands and kissing publicly in the recent months.

"Kristen and Alicia are not only living together, but they act like an old married couple," the source exclusively told the publication.

An insider also gushed that Kristen is happy that she could be who really is when she's around Cargile. 

"With Alicia, Kristen does not have a façade," the insider said. "Very few people can actually get to know the real Kristen and that is how she likes it. But when Kristen is with Alicia, there are no walls around her. She not only acts like herself, but she is also incredibly genuine because Alicia brings out the best in her."

"Kristen acts like a little girl when they are together and there is really no putting words on how happy her friends are to see her happy," the insider added. "Kristen is finally in a relationship where she is just loved unconditionally, but not because she is a movie star."

As for her previous romance with Pattinson, the 24-year-old actress now thinks that RPatz is just an afterthought.

"As far as Robert Pattinson goes, that is just a joke," a source said. "Kristen could care less what he does, who he is with, or where he lives. Kristen will never stop being who she is for her ex. That is done. Done."

Obviously, Pattinson has also moved on from Stewart, after all he is getting all the love from his girlfriend FKA Twigs.

"They picked the rings out together. Rob wanted to give Tahliah a promise ring over the holidays, but couldn't find the right one so he held off," an Us Weekly revealed this week. "They had been looking at rings together since the beginning of the year. It's like a pre-engagement ring. Very authentic and one of a kind."

The romance between Pattinson and KFA Twigs is said to be heating up, they are now contemplating on tying the knot.

"He wants to marry her," another source told People. "[He's] much more calm and happy than before. They are inseparable when they are together. They live at his house."