So theres this guy right....?

So theres this guy hes older than me by 2 yearsss, buuuuuuuuuuuuuut. Hes just one gradee up. So we started talking and we had this thing going on, like not dating yet, but then I find out he touching on this girl and flirting with her...or so she said . (Shes been very jealous of me before) My best friend told me to not like the dude becuase her other friend had had something going on with him and idk Something happened where like his girlfriend atm really likd him i guess but he broke up with her for her best friend, the one that said he was touchin on her. I still have NOOO idea if all this **** is true but I got pissed at him and we got in a fight but he didnt want to give up and he kept trying to talk to me, well what a month later now? Were friends and were talkingg. I kind of forgot how much I missed this guy, he apoligized and said he was a dumb for doing the things he did, and he still claims he did not flirt with this girl. So I think im kinda falling for him again, but like I dont know if he likes me? Im pretty shure, I cant get him to tell me though. Should I keep going for him and tell him I like him? Or should I back off.?