I'm going to tell my girlfriend what I did
Why do you want to tell her what you did?
I want to make sure my relationship has a future
It is hard to admit when you did something wrong but it will help to let her know what you did and how you took advantage of her. It will help your relationship get stronger to work on things.
I'm feeling happy that I'll get her to like me. I admit it feels good to love someone who you know you can love even more.
You're doing the right thing being honest with your girlfriend. The more open you are, the more they will trust you. If you explain to them your reasons, I'm sure they'll understand why you decided to do what you did.