PLEASE HELP? Guy problem!?

I hate to say this, but I've done this to girls as well. I just did so I could keep my options open, and if I ever got bored of the girl I was dating I could just move on to her friend. Which did end up happening, and then I ended up just using girl #2 for sex while lying about how much I loved her and how much she meant to me. This may not be the same with you, since I was only about 15 around the time. However I've grown up alot since then and now I'm not a dbag. Personally I'd move on but chances are you won't, so I would say the thing about how he can't keep doing this. Then again when I was dating the one girl she kept saying that but she still stayed, so im really not sure.