My feelings come and go for my girlfriend

Edited because previous was removed

Hi! So apparently, I (19M) have completely lost it and can’t find what’s right or wrong in my situation, so I’m trying on here.

My girlfriend and I, both 19, have been together since we were 16, though we had a little break for about 2 months when we were 17(my decision). I love her so much and honestly feel like an idiot for having to go here, but it is like a literal rollercoaster, one week I could be madly in love with her, and the next week I won’t even wanna talk to her. and I know it’s affecting her because when I’m in that period of just wanting to be alone and not wanting to be around her she sometimes ask me if there’s anything wrong but I just say no.

sometimes these periods are worse than others, it’s going right now and it has lasted for quite some time now, and honestly, I just think we should end it, but what if the next week I’ll regret it and wanna get back together, that’s why I’ve been having this problem for about a year, I don’t wanna hurt her and I do not want to do something I’m going to regret but right now i really feel like its time to end it.

I am honestly just looking for ANY advice

**TL;DR;** : (M19) falling in and out of love with girlfriend(F19) of 3 years (problems for about 1 year) I don’t wanna hurt her or do something ill regret, but right now i feel like its time to.