Relationship struggles.

Ok so me and my girlfriend recently broke up because of us arguing and her saying that im too controlling but in reality, I just care for her, A lot. I love her to death and we already talked about our futures together. I wanna get back together with her but im not so sure that she feels the same way. I wanna go over and see how she feels by trying to kiss her, but not for sex. Only for the purpose of finding out whether or not she wants to get back together this early after us breaking up. But then what will I do about us arguing? Towards the end of our relationship she started to become really hostile towards me through text and in real life, she began to start yelling, cursing and getting frustrated at me over small things. What should I do? Im at a loss :(