just read and try to help(this is?

idkk, i think that u shood pick who u like more, but if she flirts w/ everyone, the relationships going to be kinda different....and u two might not go out 4 that long

Well a girl like that is only trouble.If she flirts with everyone, and only tells you that she likes you when you have a girlfriend that is because she is what I call, in lack of a better word, a "home wrecker". You shouldn't fall for that kind of talk from her. If you like the one your with to have a good relationship with her then stay with her. The other girl is only saying that kind of stuff to split you two up. If you do choose to go with the other girl, it is a guarantee that the relationship wont last that long because of how much she flirts.

while i was reading your question, i was thinking that what attracted you to your current girlfriend. and this other girl, knowing that she is a flirt. what makes you think she is geniunely attracted to you? i don't want to seem mean. though maybe she has some sort of game, to see if she can get what she wants.. and your girlfriend has traits that you admire and that what has brought you together. i wish you luck and do the right thing

Who do you have more fun with? Who makes you feel the best and makes you not worry about anything?

You should answer those questions for yourself and decide whether breaking up with your current girlfriend is worth the resulting upset and heartache (on her side and maybe yours too).