I don't typically do this but I could use some advice.

How old is he? I dont mean to sound rude but sounds like age/maturity may play a factor. Hope there are no kids involved.
Good luck

No kids involved. Both of them are 26. He is in a big hurry to settle down and have a family so he thinks she is the one. I can't speak much about her maturity because she didn't want to spend much time with us.