'Teen Mom 2' Star Briana DeJesus Confronts Boyfriend's Mistress

Briana DeJesus may have just joined the Teen Mom 2 cast, but she's already making big waves on the show.

In the MTV reality show's season premiere, DeJesus, who just gave birth to her second daughter, discovers that her boyfriend Luis may have been unfaithful.

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She received the news from a friend, who had heard it from a family member, as pointed out by E! News. DeJesus then investigates and sees that Luis has liked numerous photos of the alleged mistress on Instagram.

"I don't want to overthink it because it could be absolutely nothing, but it's suspect," DeJesus said. "It's super suspect. I'm pregnant and you're doing something with this girl."

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She then messaged the woman, asking if she had hooked up with Luis. The woman replies "Can we talk on the phone?" just as the episode ends.

While the young mother and Luis only knew each other for a month before she became pregnant, Luis assured her he was ready to commit. She even considered an abortion, but he vowed to her that he was ready to raise another child (He has an eight-year-old child from a previous relationship).

"When I first found out, I was more like well, we don't really know each other. Maybe it's best if we do get an abortion, but you're very supportive," DeJesus said. She then asked Luis if he really wanted to help her take care of another baby.

Luis responded, "I'm all in it...I'm ready."

Teen Mom 2 airs Mondays at 9/8c on MTV.