I am so confused. Please help. Really messed up situation with this girl.?

If you are already talking with another girl then maybe you should try getting with her, if you go back to the first girl then you are just like her, as in she liked you but went with someone else and not talk to you for 8months and f you do that to the other girl it wil make her feel like how you felt. sorry its kinda confusing i hope it helped... Good luck x