Sorry, it's a bit hard to understand what you've written there. From what I see (correct me if I'm wrong):
* You are a US citizen filing for a spouse to come live in the US
* You have suspicion or proof he's unfaithful to you and you are questioning the geniuinety of his marriage to you
* You don't want him to come
First of all, sorry about this situation!
You can withdraw your I-130 case, divorce him and move on.
Depending where your case is, you may need to write to USCIS, NVC or US embassy.