I can't tell if I am becoming gay? (Idrk)???

So I've realised I was bisexual like 7 year ago (it's still mostly a secret). Don't get me wrong I do like women, it's just lately I've been finding that no matter what I do I am not really romanticising the relationship aspect of being with a women. For the past 5 months I have really just been wanting a relationship with a boy (idk if it's because I've never experienced anything like a relationship with a guy other than kissing). It's really all I want to do at the moment and the idea of a relationship with a woman right now seems okay but I'd really much rather a guy. Idk if this is like a phase where I swing to one side harder or something but it's been on my mind a good while now and I'm really confused, especially when it feels like my attraction to women is dimming? I am a teen so I always have time to experience with guys but I have really been desiring for a real relationship with a guy.