Should i hit this bitch?

No. Tell her to back off and that she is stepping over the line. Then tell your partner of how you feel about this. Tell him thatit makes you uncomfortable and that you want him to keep wary of her attempts.

Also tell him that if you find out anything is happening or happens between the two that the relationship will end.

Sure she's a bitch if she is doing what you believe she is doing but it is his responsibility to be faithful to you more than it is for her to back off.

You mean:

"Shall I needlessly resort to violence because I am incapable of conducting myself like a mature adult and obviously feel threatened enough by this woman to lash out like a child throwing a tantrum?"

Or

"Shall I conduct myself like a mature adult, trust my boyfriend of 3 years to be faithful, and go about my business unfazed by this woman who may still be interested in him?"

Go for the latter. You shouldn't need to ask this question.

One day you will realize how stupid you are and it will be the greatest day of your life.

Are you talking about hit, as in sex? If you've got a boy friend why do you want sex with this girl?
If you are talking about physical assault, well I hope you can take it as well as dish it out. She might not be the push over you think she is. That's always the chance you take when you assault someone.

Pee in her lemonade, or put a booger in her hair when she's not looking! Just kidding.

Talk to your boyfriend about your feelings. No need to risk arrest because of some stupid skankosaur.

i read somewhere...dont remember. but anyway it went something like this... if ever a man have two woman that likes him...then one woman should retreat, cus a man is not worth being liked two woman.
if you have to hit someone you should hit you boyfriend for getting more than what he deserves.

Ask him about it.

Throw a high heel at her! I've seen women throw shoes at each other. Crazy and funny as hell.

You sound like the kind of fire cracker type who could benefit from heavy mood stabilisers.

Don't go around hitting people... unless you plan to go to jail.