Conflicting doubts about my (20M) relationship (20F)

r/

We’re both juniors in college and have known each other since freshman year. We dated for about 8 months when we first met due to both of us being overwhelmed and having toxic or incompatible traits that make it hard on each other. We never once hated each other even during our breakup so much so that we got back together 6 months later (which I imitated) it’s been almost another 6 months now and things are kind of getting back together where they used to be with us arguing and fighting and normally both of us have the thought process of ‘we have time to work out it out we just have to stick through’. As of late I’ve been starting to get nervous since we’ve been arguing and that nervousness has also been aided by thoughts of wanting to be with a man(I’m pansexual and have had various sexual relationships with men but never dated even casually). Im just confused on what to do, are my thoughts normal and will they get better? Or are we both just forcing something that isn’t there? When we’re both just hanging out it’s great we’re best buds but the relationship suffers when we’re not actively doing something. I just don’t want this to drag on and hurt her feelings even more.

TL;DR: Got back together with my ex and we’ve started getting more serious our relationship has started to become like last time and I’m not sure if I should continue or we are wasting time.

Sorry for the bad grammar, English is my first language I’m just bad at grammar🙏