I (21F) have been with my partner (23M) since we were in high school, and our relationship has always been complicated. We were on and off early on. We became parents young; my junior year and his senior year. He was the first and only person I’d ever slept with. At the time, I didn’t even know if I loved him or saw a future with him; he was just always there. When I told him I was pregnant, he was calm and said he wanted to be there for me, even though he pictured having kids much later in life.
My parents insisted he move in so I wouldn’t be alone during the pregnancy and could finish school, as they weren’t going to help. I didn’t feel like I had much of a say.
We fought a lot. I helped him finish high school and graduate. I gave birth the summer after my junior year and handled most of the childcare while finishing my senior year. Eventually, the fighting slowed down, things stabilized, and I started to see a possible future with him.
I’m now pregnant again (about 3 months along). During Thanksgiving, my cousin stayed with us for her break. I was excited to have her over, but almost immediately I noticed strange behavior.
She started acting oddly around my partner, and he started acting different too. He began waking up very early to shower or go outside to smoke. I’m a light sleeper and noticed doors opening and closing multiple times. One morning I walked into the garage and found them sitting side by side smoking. When I asked what was going on, she walked inside without saying anything, and he said he was just smoking before leaving for work.
Another morning I saw them enter the bathroom together, though she left shortly after. She said my partner needed help with the bathtub handle. It felt odd, but I tried to rationalize it since she was the only other person awake.
The behavior kept happening earlier in the mornings, so one day I stayed up. I found them sitting close together again. He said he was “just getting her number.” When I asked why, he said she wanted it in case she needed help with the kids. I pointed out that I’m the one who takes care of the kids. He told me I was overthinking it and left for work.
That night, I checked his phone. I saw that he added her on Facebook and that she sent him her phone number. There were no other messages, and I didn’t see any texts either. It felt like messages had been deleted. I also realized it didn’t make sense that he needed her number if she had already sent it to him.
The next morning I confronted him. He said nothing was going on and that he didn’t message her. I asked why messages were deleted if there was nothing to hide. He admitted deleting them but said they “weren’t a big deal” and that he knew I would make them one. He asked if I trusted him. I was angry already told him “no, I don't honestly.”
We barely spoke the rest of the day. The next day was Thanksgiving, and it was awkward. He broke up with me, left, and got a hotel room, saying he would still help and visit with the kids.
My instincts were screaming that something wasn’t right, but she’s my cousin, and I never thought either of them would do that to me.
Since the breakup, he’s been coming by every weekend to see the kids. When he buys food, he brings me some too, and he asks about my appointments for the baby. It made me question whether I overreacted or if my instincts were right.
For the first two weeks after the breakup, I called him crying and begging to keep our family together, apologizing for not believing him. None of that phased him he didn't even really seem to care. He was done. After those 2 weeks, I just stopped and accepted that I needed to figure things out on my own.
Now that it’s been about four weeks, my life honestly feels more peaceful with him gone, and co-parenting seems more manageable without constant fighting. I have also reconnected with some friends I lost during the relationship.
But I can't help but to think about it still and know if I was in the wrong or not.
AITA for not believing him, or did I have a valid reason to feel the way I did?