My Boyfriend & ?

My boyfriend currently works 2nd shift from 3:30 pm until 12 am so I'm alseep by the time he comes home because we have an 18 month old son.Well,some night's I will wake up to use the bathroom and find him on the computer at 2-3 am!I know that he watching because I've went on his side of the computer before while he's at work and seen all the stuff he's been watching.It has the time's and dates.I don't care that he watches it but,what pisses me off is that he tries to hide it and lies about it!I've asked him on severeal ocions has he watched online since we've been together and he flat out says No.I don't understand why he would lie about it because he knows I don't care and would love to watch with him!I don't know if I should say something to him about it because I'm afraid he'll get mad about me going on his side of the computer being nosey.So should I say something about how I feel,am I reading in to it to much,what should I do??