Ok so it's weird I have a gf but when I see a pretty girl I start feeling really bad because my brain just starts showing how the future with them would be

When i have this scenario in my head : kissing a girl in my bed , i can image it very much mike i like it and it will come naturally I dont know if i really like it and i dont like that i like the idea Or That i just dont like the idea Also feeling really weird and maybe even sort of disgusted of my bf when i image the same scenario with him, or i feel like i cant image kissing him Wtf is this ?

Lately, I’ve been kind of confused. I’m in a relationship with a person I’ve known for a long time. I also happen to deeply like two famous people I know. It’s like I’m extremely attached to them. All day I think about them. But it’s kind of weird, because I don’t spend all day thinking about my girlfriend. I love her, but it’s like these other two people are on my head all day. It makes me feel insanely horrible for being in a relationship. I feel so myself with thinking about those two, like I’m free from everything. I feel insanely guilty too. To the point it’s been causing depression, and this obsession of needing to know what’s wrong with me for this. It’s like I try to tell myself nothings wrong, but I feel so guilty. I just think about them all day, and not my girlfriend. It concerns me. I’m 15, I just turned 15 yesterday. And I always try to talk too my mom about this, but she always says the same shit. “I was like that at your age” but I’m not trying to say that. But like seriously I’m so confused about myself at this point I don’t even know what too do

So another obsession just popped up and it’s how during school I had a class with this one girl and I would always notice her. Like whenever I looked around my eyes would always go to her. And right now I’m just scared and feel like a terrible boyfriend bc even when something funny happened I would look around but my eyes would find my way to her. Now I feel like I just wanted her to notice me and it feels weird