AITA for breaking up with my gf of 7 months? My girlfriend and I had been dating for a while and she really liked me and to her it must have seemed out of the blue for me to start talking about breaking up. 

In the beginning I really did like her but as it neared the end of our relationship I became less interested in her romantically. 

Obviously I still care about her a lot, but when we broke up she said some harsh things and blocked me from all communication. 

I feel like I may have made a rash decision to break up with her because she really liked me and was heartbroken when I told her I didn’t want to continue dating. AITA? 