"If he is still loyal..."
 Well, I cannot speak about his character because i do not know neither of you in person. But I can certyainly talk about the process to be here in U.S.

First, find out how long it will take him to get green card? It depends on when it was applied from his job and number of visas available. Once he gets green card, you will not get that immediately. Being a green card holder, he sure can file form I-130 Petition for Alien relative; but it might take 3-5 years for the process to br completed. If the petitioner (you husband in this case) is a U.S. citizen, petition for "Immediate Relative" (which is you in this case) would have been approved in 3 -6 months.

I would suggest for you to try student visa if waiting back home is creating trouble.