What is a good reason to divorce? or is this good reason to seek divorce?

If your marriage is lacking in trust, there are subtle ways your husband belittles your importance in front of his family and friends is this a good reason to divorce? This morning i went and kissed him and he said "you are smelling of pee" ...it was shocking to me. I also found him subtly firting online with an "old acquantaince" last year who i didnt know existed and my heart was broken...it has been disturbing me to the extent i cant focus on my career ( have a good one), cant seem to take care of things...i really want to get away. I am not meeting this persons expectations although last 10 yrs when we met arranged ( am asian) and today he has progressed due to my support...also feel he is a big controlling cat and if i get away dont thing he can act so big anymore....please advice? i have one ittle son