Am I being a freak or is my husband DEAD WRONG???

So my husband recently decided to join facebook, which is fine, i've been on there for quite a while now and it's an awesome sight. The problem is this, he didn't even tell me that he was going to join and on top of that he friend requested me like a week later after he'd already accumulated over 50 friends and over half of them were females. He had status updates, wall posts, photo albums(which included some wedding and family pics) the whole nine...he claimed the page was only a week old but it looked pretty legnthy to me. However i don't understand this sudden urge to be reconnected with his "high school friends" again: over 1/2 of them women and to go behind my back and do it ??? what's that all about??