Confused

Basically there was this i chased throughout all of middle school and high school. We were really close friends for about 4 years. Then life happened and we didn't talk for a while. I've recently been seeing her again and now even her best friend asked my cousin who's house we've all been hanging around the past 2 weeks if anything ever happened between me and her. I thought it was just me but apparently her best friend noticed she was acting flirty and different towards me. I have a girlfriend of 11 months now and I'm moderately happy. The girl that's back in my life always had a boyfriend and now doesn't.

My cousin also believes she's been flirting with me the past two weeks. I had no feelings for her in the beginning of us hanging out again. but now after all the things she says and does i think i might start getting those feelings back. i normally never ask people for advice nor did i ever think this would come up. but any input on this would be appreciated. opinions/advice/anything

(i have text messages i can post on here if it would help anyone)

thanks.

You have been with your girlfriend for 11 months why throw that away with something that probably won't last. The girl apparently didn't have any intrest in you then so how do you know for sure she does know? She could just be trying to get inside your head. Your girlfriend would be crushed if that was the reason for leaving her. The way I see it you have one of two choices:
1) Break up with your girlfriend and get with this girl that you were chasing all through highschool, break your girlfriends heart, and hope that things work out for you and this girl or
2) Stay with your girlfriend and get rid of the other girl so that she doesn't come between you and your current girlfriend.
It's your choice though. What ever makes you happy.

Left out the part she's cheated on me twice. just throwing that out there. and it wasn't about leaving her. it was about should i just not talk to the girl anymore or what. i'm not leaving my g/f for her or anyone else. no way

my mistake for not making that clear. thanks for the input though so far guys.

I think this is one of those cases where you need to sit down.
Make a list of pro's and con's for each girl.
Throw the list out.
And follow your heart.

Follow your heart paper aint gonna help jack _______________

Thanks for all the input everyone. appreciate it.