SUBREDDIT: r/relationships
TITLE: So stupid of me
POST: My girlfriend, 22, of 3 years and I keep fighting about things I've done in the past. Approximately 2 years ago. She keeps asking questions about those times, and I answer them but the questions keep piling up and I have no clue what to do. I know it's my fault, I know this. So stupid of me to think back than that I could actually form a healthy relationship knowing the things I've put her through. It's frustrating to say the least because I am no longer that guy anymore... My fellow redditors, any advice? Should I continue to make it work or should I just leave...? Doesn't seem like the questions will ever stop.. Sometimes I get confused about what she's asking, she likes to ask in different variations.. I'm genuinely confused. Help?
TL;DR: 
girlfriend of 3 years have been fighting about things that happened two years ago. Should I drop it and let it go or should I continue to try to make things up to her?