Boyfriend won't let me see him without his shirt on?

My boyfriend won't let me see him without a shirt on. I know that before we would share a bed that he would sleep naked but how he won't even let me see him without a shirt on. We sleep in the same bed now and I know that he is Uncomfortable with so many clothes on but he still won't take off his shirt. I think he wants to but he is too self concious. I'm very open with him about my insecurities and I would never make fun of him for the way he looks. I just don't see what is going on and why he's doing this
Boyfriend won't let me see him without his shirt on?
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