"will this white guy be more accepted in chinese culture because he married a chinese woman. I mean like he will get easier a bank loan for a new car, business, house, credit..or he will just remain being an english teacher and a outsider for the rest of his life if he stays in china with his new wife."

Firstly, Chinese culture ain't worth being accepted into.

Secondly, said white guy can stay in China for the rest of his life on account of his marriage to a Chinese woman.