So I got out of high school, I'm on my first year of college. (Yay me!)
Everything's okay but I'm in a class with my high school sweetheart, actually more of a bitch than sweetheart. We broke up, she has a boyfriend (who's 30)
I can't compete with that, he has a car, job I guess (He should!)
Now she's talking shit about me, we don't talk we don't look at each other. Break up was pretty painful for me at least and now I'm not going to my classes (I really don't have to, I only go out on exams and I'm straight A's student)

Now it has been some time since we saw each other; people in class think I'm awkward mostly because she's talking stories about me. She's trying to play the victim card like i harassed her or something. There are some that believe her and there are some that don't. Actually i don't care what others think since I'm applying for a new college (Pharmacy)

So what I'm really trying to say is how to develop an attractive lifestyle, so that actually she feels like she wants to know me again. I don't want her back i just want her to be jealous of me, I want her to be stunned by how far i progressed since we broke up.
Any advices on how to act around her, should I start saying hi to her. Or should I just play it cool like i don't see her at all.

Hey bitterend, thats a rough story man.

This life experience sounds like it is going to be the fuel to motivate you to really get a great lifestyle.

going forward, focus on making yourself happy and finding success. Don't forget the past, but don't make it your future either. Don't worry what your ex thinks, do it all for you.

Good luck on your journey and stay positive.

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Yeah I know. Actually there is more to that story than i can write.
I tattooed her name on my wrist and she threw me away in an instant, over one weekend.
But I'm over that, why? Things are moving on. And I really have no hard feelings I've matured mentally a lot since then. I do tend to keep my distance from people.
Would like to get my revenge, but I guess that will never happen.

So since we are talking about attractive lifestyle, I kinda thought some things through like:

I'm going to be vegetarian (I love meat way too much), I think it's a positive change since I'm practicing discipline and restraint.
Applying for a new college, but I will continue with my old one (PR- not that bad)
Thinking of learning French, I can speak fluent English and my native language so that's a plus.
Going to join swimming club and I'm taking piano lessons.

From a kid that couldn't see nothing but her I grown in a person that has ambitions and goals that don't involve her or any other girl.
I'm trying to make a stable personality, that will not get shook by a reject.
And I'm going to work on my ''awkwardness''

What do you guys think I could add to my arsenal; some positive characteristics? Name some. I alway thought that being mysterious works, since people tend to love mysteries.

There are a lot of factors to be done here, and honestly she probably won't notice most of them. First off, ignore her, don't obviously ignore her but just treat her like she's just like anyone else that you don't know. Basically freeze her out. Since you want her to "see" that you've become better than you were with her you'll want to work on image, not just clothes and hair care either, you'll want to work on posture and visible confidence. Joining a swim club is a good idea, like you had already said, or a gym. I'm not saying you have to bulk up or anything, but creating a healthy exercise routine helps lead to a massive boost in confidence.

Though I haven't been in your exact situation, I have been in many similar situations, I wish you the best of luck.

sounds pretty bad man,

but put it this way, if shes going out with a 30 year old and randomly talking shit about you, she sounds a little immature, maybe you had a lucky escape?

Either way, fuck her. You should go to classes, just be your normal chatty social self, acknowledge shes there and if you need to interact with her. If the whole thing has had a confidence effect use some NLP stuff in order to get over that and get back to your normal self, that way people will see the real you and see her absurdity and talking shit, if you need to PM me for NLP techniques feel free.

You should focus on who you want to be, and what lifestyle you want to have. Take about an hour to decide that, then decide exactly how you can achieve this n terms of practical action and time management.

Then enjoy life and enjoy the ride

hope you ok dude!

If it were me, I would befriend her. That'll really make her look like an idiot. I'd use compliance ladder: ask for small favors that she'll won't turn down (asking what the homework is), then bigger favors (borrow her notes), then bigger favors (relationship advice??). Maybe take her out for lunch sometimes- you have to reciprocate the favors too. Then BOOM, "hello, cognitive dissonance..."

She'll like you and won't bash you anymore, then once she stops talking shit about you, she'll really feel like a dumbass. lol.