<human>: Condense the text into a few key points

I don't know what to do.I don't like the fact that she hides things which upset her from me. It make me Think is she actually happy with me? I've tried to talk to her and tell her to tell me every time she has an issue but she refuses. She's says she doesn't want to be seen as annoying or whiny so she doesn't tell me when I do something little which hurts her feelings. She gave me some examples of how I've made some jokes which actually hurt her feelings which is fair enough but she won't tell me anything more than that. Now she's forcing herself to be happy even though I know she's not and I don't know what to do.I can't just pretend to be cool with it. I'm not happy knowing she's not happy.
<bot>: gf says I do a lot of things to upset her but she won't tell me what they are. I can't be happy knowing she's not happy.