Should I rush the same frat again?

[dekeguy]

I don't know how many votes it takes to black-ball you with TKE, and local practice may well vary from TKE chapter to TKE chapter. That said, if you really want to try again you should talk to an active brother that you feel close to and ask him to advise you. I doubt if he would say who or how many dropped the ball on you but he could tell you if anything in particular was working against you. He could informally advise if he thought you had a chance or if you pissed off a lot of people and may as well forget it.
It might be that some of the graduating seniors didn't like you and your chances got a lot better with them gone. It could be something unconscious like over using the word frat, it could be anything. This is why I suggest you ask a friend directly whether you have a chance and if there is something that rubs some people the wrong way that you could be aware of and watch out for. There are a lot of things that may mean nothing to you which you could down play without trying to be too accomodating.
Its a bit wishful thinking that your chapter must fit you like a second skin and you must be exactly what they are looking for. Everyman is an individual to a greater or lesser extent. What you need to be aware of is if you are saying or doing something that has the effect of putting your cigar out in the rush chairman's eyeball.
Ask, learn, if you have a chance decide if you are OK with what it might take to score a bid, make up your mind and go have a great college experience.