What should i do?? ill answer rs?

Bascailly we are both 17 and are in the same school. she broke with me because she wanted to go out and kiss other guys. (we only out for about 1 1/2 months) she kissed a guy the nighr after we broke making me feel like she broke up with me just for a ramdon guy. i told i still liked her and she told me that i have to move on and that it was none of my business After that i tried being friends which worked and still works to this day. I have tried and moved on... i kissed other girls but it never did lead anything besides that.. i have gone and enjoyed my life and it get easier each day. She went out but it was rarity and she hardly kissed other guys from i jave heard.. Although she gotten angry at the fact i have went out and commented on saying that i noved on quick even though it wasnt something i wanted to do. i think she feel gulity as she has asked me i she mess me about in which i said yes. that ages ago and i she is now talking about another chance. What should i do?