Me and my fiance of a year had a fight 4 days ago and now he won't talk to me. Guys, I need your opinion.?

[Chris]

He still has feeling for his ex & he does not want to shut that door completely. He thinks u never know she might want to hook up with him later down the road. Us guys even if we have a gf love the attention and the excitment of possibly having sex with r ex again. Thats what it is. Im a guy ive been in.this situation before. Guess what she did contact me about 1yr later on fb. We eventually met up & we started recconecting again. The Sparks were still there & we ended up having sex several times again. Clearly with his deffensive reacrion he is hiding something from u & if i were u i would be very careful and keep.ur heart on guard.