I'm done

So I know that I've said before that I'm through, never again...but this weekend sealed the deal.  I can't keep giving and giving just to be there for him when he wants.  Why should he try when I do for both of us.  It takes a toll on you eventually.  I've done everything I could think of over the last 3 1/2 years to make him happy, and what have I gotten in return?  Nothing.  It's partly my fault for putting up with it, so I think I'm just not going to anymore.  He has 1 year to prove to me that he wants more than just a buddy out of our relationship.  If after that time is up, I'm just gonna be packin up shop and heading down to sunny Florida.  Why should I be single and lonely in 70 degree rainy weather in June, when I could be sitting in the sunny 90 degree weather of a much more relaxed atmosphere?  If I'm going to be single and lonely, I might as well enjoy the weather!