You got dumped.
The problem with wrangling a girl from another guy is that if she can be so easily persuaded to leave her boyfriend for someone else, what would keep her from leaving you for another guy? I would think twice about pursuing a girl who is dating someone else.
Find another one. You dont steal someone else's girl dude.
In this case he has fallen for another girl, while dating someone else.
find someone else hes not worth your time
Leave him, he's apparently in to someone else.
Tell that girl to leave you alone, because you like someone else now...
kill her kill her
If they are in love with another girl then you should leave it alone completely. Eventually you'll find someone who is not involved with someone else and you don't hurt anyone, including yourself.
I would call it a rebound. "The best way to get over one girl is to get under another"
the only way to find out is to watch him with this other girl and if he seems to like her more than you then dump him, what else are you supposed to do. and why would you want to go out with someone that doesnt like you as much as someone else anyway
Tell him you want him back and if he doesn't want you after that then find someone else.
It hurts I no. Just try to find someone else and wish the best for him.