I am so confused help me!?

ok heres the deal my boyfriend of 4 months broke up with me a while back and i still like him alot i havnt been able to get over him but i was at skate country last friday and this other guy was majorly hitting on me like he came up behind me and hugged me for like five minutes and leaned in to kiss me twice but backed off both times cuz there was too many people around then he whispered to my friend and said i want to kiss her but not right here so im thinking of asking him out but the problem is i still like my ex alot and i dont know who to choose my ex who i really really really really like but i dont think he still likes me or the guy i really really like who im almost positive likes me? please hlp a girl out!