That 2-year itch is coming back. Just send her a simple text like "Hey, I wanted to apologize a few years back. I'm sorry for what I did to you. You don't have to reply if you don't want to."
If she replies, then good for you. However, she probably won't want to meet up with you again. It's probably going to be her texting you back and that's it. It's out of your system, and then you can move on with your life in peace.