Well Done. U f a Virgin (which is hard to comeby) and now u want
to leave, or should I say dump her. Seems like yr gf is using yr
semens to glue both of u together.
Bro, u
want to have diff sex partners, no porblem, but u have f a virgin
which is her 1st time and which means, her mother must have told
her that she must marry toi the guy who broke her virgin. U
dead.
To dump her, u have to be heartless. No choice. Or, u go ahead and
have sex with yr A or B while she's still yr gf. Treat yr A or B
and spare tyres lah. 
But advise is, think twice before u broke off with yr super glue.
If u feel she think she's after yr $$$, leave her. If not, do think
twice. U never know what she would do after u dumped her. And ask
yourself if her character is better than any other girls u have
been with.
Good Luck.