I think I did something wrong to my girlfriend. I've been worrying for weeks about it.
What is it you think you did wrong?
I meant to tell her some things but I kept my mouth shut instead.
If something you've done has been bothering you for a long time, it is a good idea to sit down and talk to your partner about it. It is the only way you will relieve your worries, so you should just go ahead and get it over with.
I'll talk to her but I'll still feel guilty about it.
It's okay if you feel that way after. It will pass and get better if you do it as soon as possible.