Did I Over Do it :(

My husband and I are married 2 years now, together since 2007 and have 2 beautiful young children. we were very happy and fortunate to have all that we have together. however this is the 4th time he hides a friendship that he claims was only platonic. He made friends with a girl from our local supermarket and didnt tell me about it, I found out on "fb ofcourse" that they have been friends since november 2011, then i find out they hung out to play pool while i was working. Not just her , her and her brother and cousin but still I was so lost and out of the loop. then today I tell him to delete her since it has caused us to argue for the past 2 months and he says no. .....i then look at her page tho i shouldnt have and found out he left flirty comments on her page and has liked her pictures of her posing a certain way......this man has many girl friends and im okay with that since i know of them but when you hide somethng or fail to tell me I start thinking the worst.

This is not the first time this happens , this type of scenario and Im growing sick and tired. I was going to accept her as his friend to save our marraige and family until i saw those comments and made me furious....he is a good guy but why hide stuff like that to make you seem guilty :( am i over doing it with the jealousy?? or am I reacting to this normally...??

He wants out of the relationship cuz hes tired of the same thing happening with me reacting to his girl friends like this, mind you i only do this to the new ones he has made after us being married and that he fails to tell me unless i ask. smh Why does he keep repeating the same mistake :( ;/ smh please help .....