Does anyone else experience this and if so why, I don’t understand this

r/

18m gf 18f

I’ve been in this relationship for about 2 months at first I was very skeptical and guarded because I’ve had bad experiences, also I didn’t know her. I think we love bombed each other. We both fell for each other hard and have felt strongly for each other, but for me it’s been on and off. I don’t understand why. I don’t understand why I could feel so strongly for someone then it disappear, how I could go from seeing a future with a person to not eve. Wanting to look at them. I’ve been obsessing over why this happens from learning about attachment styles to how to reprogram your subconscious beliefs/mind.

I am going to therapy to understand why this is. I feel like a big liar and a phony. I have extreme guilt to the point I can’t sleep at night and have fallen into a depression because of it, not enjoying anything or anyone.