I'm stressing again what if actually I am not in love with my gf and I'm not missing her right now?

Is this ROCD? My girlfriend spent the night yesterday and we were cuddling when I felt that I may have not felt attraction towards her anymore. I started to freak out, because I felt that I hated her and didn't love her. When we would kiss I would get an uneasy feeling, like that I didn't want this relationship. I know I do, but it's freaking me out, it's like I can't even feel emotions towards her specifically anymore. I've been so distracted by this problem, I feel I'm also lacking attention towards her. I've been on my phone a lot during her stay because I've just been trying to distract myself. It hurts really bad, and I feel like a rude bitch.

Lately, I’ve been feeling like something has changed in me — like I have changed, and like my feelings for my boyfriend have faded or shifted. It’s one of the worst sensations I’ve ever felt. I keep thinking things like “I don’t love him like before” or “I’ve changed too much to feel anything now.” Sometimes when he calls me or makes a joke, I get irritated for no reason. I feel like I’m being mean, cold, disconnected — and then guilt crashes down on me. I remember how I used to feel: warm, close, expressive. And now… I just don’t feel the same. That makes me think: “Maybe I’ve fallen out of love.” But I’m also constantly anxious. I overthink every moment. I can’t relax into anything without analyzing if what I feel is “right.” It makes me wonder — maybe I haven’t actually changed. Maybe I’m just overwhelmed and tired from months of these thoughts and fears. I don’t know how to feel right now. I just want to believe that this disconnection isn’t proof that love is gone, but a sign that I’m scared and burnt out.

I remember another thing from the past where it was a sexual thought and I don’t remember if I was talking to or dating my gf at the time but it was like “if I was talking to someone else like _____ I’d be able to have sex already” and I feel terrible bc I don’t want sex. I would rather be with my girlfriend than any other girl. Idk if the thought was intrusive or not. I think the people or person I was thinking of may have been intrusive. I’m just terrified bc I really love my gf and don’t care about sex