I feel like I'm two timing them...?

Ok...so quick facts...I'm in my mid 20's, I was in an almost 4 year relationship with someone and I ended it because I felt like he was a bit too immature for it and I felt like he didn't care for me as much as I cared for him...so, five months after we broke up, I ran into an old high school flame, we had made out three times in the past (each time separated by a couple of years, since middle school). He was wonderful, he treated me like I had never been treated EVER. It felt so perfect.

About a month ago, my x started contacting me again (we live in VERY far away from each other now). He has explained that he regrets losing me...and that he would like for me to wait for him and that maybe in the future I can move to his area. But I don't know what to do? A change in location would be great because I have a child (her father is not in this picture at all) and the area where we live in is not good at all. I know I still love my x...but he wasn't the best person to me...and at times I feel like it would be best to just walk away from him but my dumb heart never lets me...my x knew I had a "bf" but my (at the time) "bf" and I took a break because of personal issues but somehow we starting hanging out again...neither one knows I talk to both of them...I do tell both of them I miss them...because in a sick way, I do. Wrong...? I feel like I am using the new guy...but I can't stop myself from doing it...(Tell me about it)...but it was almost 4 years with my x...and I feel like he did mature, he does love me, he's done things that prove it to me...I just don't want to hurt anyone...have you ever been in this situtation...? What should I do? F*ck..I am so confused...