Why does my boyfriend do the opposite of what I ask?

My boyfriend is never doing what I want for example: he knows I like it when he likes my pictures on facebook but he never likes them so when I ask him if he saw it he says 'I was going to like it but then you asked' and then never will? But he will like other girls ones? Secondly if I say I'm worried about him messaging a friend a lot or something he will do it more and say he can do what he likes, which is fine but feels like he does shit just to piss me off? Why is this?
Why does my boyfriend do the opposite of what I ask?
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