So, I'm hoping that you're not truly as lacking in good judgment as it would seem you are. That, or I'm hoping ABC paid you an effing fat chunk of cash to dump Melissa on national television. Because the way I see it, there are a few possibilities.
1) You were both in on it, and both of you were paid handsomely for your public breakup.
2) Neither of you were in on it and you simply chose to dump her publicly for shits and giggles.
3) Only you were in on it and handsomely paid to dump her publicly (this option makes you the biggest dick in case you were wondering).
Granted, Molly was right when she told you that you were making a huge mistake by not picking her. Butcha didn't pick her, didja? You either:
1) Are truly in love with Molly and simply didn't realize it until you figured out ya didn't love Melissa or
2) Ya got tired of Melissa and felt no qualms about asking the seemingly low-self-esteem Molly to give you another shot despite the fact that you'd already publicly humiliated her on national television. She apparently doesn't hold a grudge, lucky for you.
So anyway, dude, I just want to say that regardless of whether you and/or Melissa were paid, you're sort of a douchebag and I've completely lost respect for you. The idea of 25 women vying for your attention is basically a joke.
Good luck. Dickwad.