Should he be mad?

After my divorce I was very self conscious and a friend had a nudes/body image page on facebook. You didn't have to post nudes and it was no negative, self esteem building no hookups group...I'd been a member for over a year when I got with my now fiance. We've been friends for over 20 years and reconnected and it turned into love. One night couple months ago he had seen some of the pics from the group and said Babe you should post a pic and show off how hot you are...so I did. Well a month later he saw the post while on my phone and blew off the handle saying I was cheating or looking to...Now he has a tumblr with graphic images of his rather impressive member and my pics werent showing anything. I stopped being a member of the group and thought everything had boiled over until recently he keeps bringing it up and has been acting weird. Like deleting messages from a girl I don't trust and think wants him and I've caught him in a couple lies. Should I be worried and do you think he had the right to be mad at the pics I posted? It have attached the pics...