You are too immature to date. Given the only think you things- worth mentioning about wither of these women is how hot you found them, you dint really deserve to date either.

If you broke up with hurl 1 to be with girl 2? She was not for you. If you loved or respected her at the time, then you would not have so easily run after another woman.

You fix this by leaving both women alone and working on yourself before you inflict yourself on the next woman. Treating people you date as if they are shoes that you are comparing or trying on for size is not ok.

You dumped girl 1 a year ago. She's probably long over you and us likely dating someone else. She certainly wont be happy with you knowing that you dumped her for another woman. Sorry but that's not the kind if thing a relationship can come back from.