Me and my bf have been going out for a few weeks, we've said I love you, etc. Spend a lot of time together, met his family. However, a month ago I was told by about 3 people he cheated on his ex with this other popular girl from a different school. After following up with him, he said they were all drunk, she kept grabbing his hand, he said he had a girlfriend but she didn't leave him alone and he didn't move away. We kind of just brushed it aside because we both agreed trust is important, but today he posted her for her birthday with two separate stories, one of which she was in just a clearly visible bra and a vest giving him the middle finger, a snap he'd saved in chat then in camera roll, which I personally think is weird. He knows I was worried about her, and also one more red flag is he's been more dry more recently. At the beginning of our relationship, he was very clingy, twenty texts a day, lots of random snaps etc. Nowadays, tbh I don't use my phone much, but he does and he texts me only a few times, far less kisses on his texts, and one dry snap a day. Even when I do have my phone, his snapscore jumps up by like 400 each time and he doesn't reply to me. I don't know if I should be worried, especially as we just had our first time recently and he didn't text me after, I think I'm just going to pull away too as he's been doing and see if it matters to him. He still says love you and sends the occasional tiktok or two, but I don't know what to do about this girl situation, do I bring it up, do I start pulling away now? Any inputs appreciated