quitting a sorority, how badly would this look?

I would just chill out and become one of the more less active members. Pay your dues, go to meetings etc....But you don't have to do the super die hard or social thing. That way you can sort of have the best of both worlds.

Do what will make you happy regardless of what others think. It's your life and life is too short.

your job prospects will be the same whether you were in a sorority or not. quitting has no long term impact on your future!

I don't think you are really a uf student because I thought most were smart. First, a sorority or fraternity will not make or break your success in a job. Second, what were the reasons for joining a sorority? You should be focused on getting involved in leadership opportunities and you are ready to quit because guys (who you think are nice) hit on you? Back up, focus on reality and get over it all - regardless of whether you quit or not, you need re-focusing as to why you are at UF in the first place.