Tell her that you can't make up the time you've lost, but that you would like the two of you to be part of each other's lives from now on. Ask if her she'd like that, too. If she's reluctant, tell her that you understand why, tell her that you'll always be there if she changes her mind, and leave it to her to take the next step. If she wants to make up, too, make plans to get together somewhere, but take it slow and keep your expectations reasonable. It's possible that once you meet, it will be like you were never separated. But it's far more likely that it will take time to bridge the gap and get to know each other again. Give it time and stick with it. Good luck.