Are you feeling jealous over the girl your ex left you for?  This is a natural and painful feeling to go through after a breakup.  Here are three tips that can help you overcome this jealousy and move on with your life.

1. Picture them fighting and breaking up. 

Know that this will inevitably happen, because:

a) she's a rebound b) he might be dating her to MAKE you jealous c) if his relationship with you didn't work out, it won't with her.

Many people, especially ones who are perpetual "dumpers" or heartbreakers, have something called Grass is Greener Syndrome.  They constantly think that getting a new girlfriend or boyfriend will help them appease some need inside them.

Your ex probably figured he'd find something in the new girl that he didn't find in you.  When he realizes he won't, they'll break up.

2. Accept that it's his problem, not yours. 

If he dumped you for another girl, that's an issue with him.  The other girl may be giving him admiration and appreciation he felt was lacking from you, but callously breaking your heart without giving you reasons for it isn't really acceptable behavior.  It's just commonly accepted now because so many people do it. 

But it hurts many people, and when you feel this pain, you have to know that it's something in him that's lacking - not you.  You were the one who stayed faithful to the end.

3. See this time as a gift.

Try to see your breakup in a positive light: now you've got a chance to be free and single again, and meet a guy who will truly appreciate you.

If you start pursuing your hobbies again, hanging out with your friends, and trying to reframe the breakup in a positive light, you'll meet new guys very quickly.  Many of them will be very interested in getting to know you; the more you put yourself out there, the better you'll feel.

Every new guy you meet, even if you don't date, is a success.  You're overcoming the fear of rejection that your ex instilled in you.  Maybe he rejected you, but it's his loss.

Conclusion

If you truly miss your ex and you want another chance with him, that's also a possibility.  What you have to do now is to seize this time to make the most of yourself.  Be happy.  Hang out with friends.  Enjoy life. 

When you become as fulfilled and positive in your life as you can, you automatically attract your ex, and anyone else, because you become more self-confident.

Self-confidence comes from developing yourself and taking the time to truly enjoy what you want.

So when you suffer a breakup and want to get him back, the steps are simple: heal from the breakup, start doing what you love, build your self-confidence, and then put yourself somewhere he'll see you again. 

And then, it will be the other girl who's getting jealous - not you.