me (24m) and my ex(30f) are breaking up. We’ve dated for 4 months and have had more arguments than I care to explain. I know we need to split, but it still breaks my heart.

We argue all the time. Sometimes its my fault. Sometimes it’s hers. I’m not going to go into detail. I’ve already decided in my heart that we are not right for eachother. But why do i still love her?
Ive never had a relationship this toxic. Shouldnt a breakup feel natural?