LOLAs

Hmn, i hope you get through this very well and you sound like you are in control. Just a few point of correction, if he can afford to cater for you in Nigeria like you have described above it implies that he probably can leave comfortably in Nigeria and probably not intend to come here and work as a CNA. But it is your relationship and you knew what happens their. It is just unfortunate that we hear stories like this and people are quick to say the Nigerian spouse is a scam, we never get to know the other person's story.
A lot of women think if they marry a foreign spouse they can order them about and control them because of green card. A lot of time it turns ugly because American culture gives a lot of good liberty to women some of which they abuse. With a foreign spouse it will be uglier because the culture are different. If he can pay your rent in the US he sure must be comfortable in Nigeria, it is 150 naira to a dollar today and it has always been arround 120 t0 130 naira to a dollar two years ago. Money seems not to be the motif here and I wouldn't think green card is the motif if he is working as a CNA. if that has been his motif then shame on him for coming to America to clean other peoples pups when he can live a good life in Nigeria. I always wonder if people will say their hubby scam them if they are USCs, but if it is an immigrant spouse then it is automatically a scam and they want to get them deported just to get back at them. If they had been USC what would they have done? Kill them or get them fired? There is always two side to a story, let us all exercise control before judging anyone.
The fact that someone is a Nigerian doesn't mean that they are scams, I am a proud Nigerian American and so are many others who lives in this country faithfully and work hard to make it great. The fact that a marriage did not work out does not mean that the immigrant spouse sets out to scam you, a lot of marriages do not work out, when yours fail don't turn arround and say that it was because your spouse did it for immigration purposes.
@Enligthten one, report him to whatever agency but be sure you are faithful about what truly transpires and not jump to conclusion. Goodluck to you.