Should I ruin and cause my relationship to end because I couldn't see clear hints from my girlfriend?
That is quite a choice to make but please explain to me what you mean by that?
I mean that my girlfriend had never liked me and I wasn't her first priority.
If a relationship has ended you should move on. You cant be expected to be a mind reader when dealing with other people.
But I really like her and she should have told me the truth.
It takes two to tango, and if she never liked you, then you are wasting your time and effort. It's best to just move on, especially when you are young and handsome like yourself. There are plenty of fishes in the sea.