well its really up to you on how you can handle knowing it in the first place. Sounds like she loves you now enough to risk loseing you to tell you in the first place. She could want a clean start and to be honest and up front about everything thats why she told you now in the hopes you will forgive her and know she does love you very much and thats she is very sorry for doing what she did when she was not sure you both where right for each other to start with. Good luck with this i hope you can work it out true love does not come by all the time so be sure you know what you want and have before you do anything.