not getting a bid?

Honestly, you'll get a bid from someone. Unless you literally don't talk during the rounds or only talk about the time you took Molly at a festival or spit on a sister.
It just may not be your first choice heck might not even be your 2nd, 3rd, or 4th choice. If you make it to preference round and have even one pref party to go to you are most likely getting a bid from whoever you have left as long as you maximize your options and rank everyone whose pref parties you attend. The recruitment system is built so that if a pnm makes it to pref they will more than likely get a bid unless they do something horrible at pref like spit on someone or kick over a display....
If you have an open mind and realize that any chapter who keeps inviting you back sees the potential in you and wants you to be a member of their chapter for a reason, you'll end up just fine. Good luck with recruitment!