I, a 28-year-old man, picked up my partner, a 27-year-old woman, after her night out, and she was extremely intoxicated.

I picked my girlfriend up after a night out, and she didn't recognize me at first because she was so drunk. A day or two later, we both noticed a bruise on her backside that looked like a bite mark. I've been struggling with anxiety over infidelity, and we've had some issues recently. I haven't been the best version of myself, and I acknowledge that I've pushed her away in significant ways, which I'm actively working to improve. I can't shake the feeling that there might be something more to this situation. She claims she fell down the stairs while drunk, but part of me feels foolish for doubting and another part thinks I might be overreacting. How would others handle this? I've discussed my concerns with her, and she shared her perspective, suggesting that I either trust her or consider ending things. Since this incident, I've been quite distant, and I can see how it's negatively impacting our relationship.