Mommy613 if he is doing well then don’t worry so much and show him a lot of love. Let him talk to you if he needs to but don’t push him. Just keep your eyes open and check who he hangs out with.
Another point is that if he felt comfortable enough to wear the jeans in front of you maybe he just wore them for comfort. (he couldve found a way to sneak around in them if he wanted to) maybe he wanted to see your reaction.