'bros before hos' is one of the dumbest things ever. It's not like you'll spend the rest of your life together with that guy (unless you're gay), but if the girl and you love eachother you will with her. If the guy can't take you dating a girl who doesn't want him, or whom he has broken up with, he's just a whiny little kid with emotional problems. Finding a partner is a lot more difficult than finding new male friends, the later just takes walking into a bar and buying everyone a round.
P.S. Girls/women are not 'hos'.