With my DH for 4 years, have one DC together. Overall have a fairly good sex life (normally 2-3 times per week). So not to dripfeed, DH is a heavy drinker but does his fair share of housework/childcare.
The past few times I've initiated sex with DH he's turned me down saying he's not in the mood. The first time it happened I just said no worries, we can just cuddle. I assumed he was tired as he had been up until 6am drinking the previous night, but did find it a bit odd as he tends to be hornier the day after drinking. The next day I tried again, same response, although he did offer to play with me but I said no (nicely). Third time I initiated (couple of days later) he once again said he wasn't in the mood. I told him that was fine, but would he mind playing with me. He told me no that he just wasn't on the mood. Now before I get flamed, I know that men are perfectly entitled to not be in the mood, but it's very uncharacteristic of him. We've not been fighting recently or anything else that would make him reluctant. I admit I did ask him was everything OK between us and he got very annoyed saying that "I need to stop making everything about me". I wasn't trying to do that and I know I shouldn't feel so upset about being rejected. Im aware I have self esteem issues that need addressed but it doesn't help matters being knocked back by my own DH. He did watch porn later one evening (whilst drinking) after rejecting me that morning which adds further insult to injury. Before people come on shouting about addiction and death grip, I really don't think it's that as he openly admits to using porn once/twice a week and although I dont love it, it's never affected our sex life so I don't make a thing out of it. After being rejected a 3rd time, I've not come on to him since as dont want to pressure him nor do I think my fragile ego could cope with another humiliation.
I can't speak to DH about lack of intimacy as he'll only get angry/defensive plus I know there's nothing more unattractive than a desperate/needy DW. ED had crossed my mind, particularly due to his drinking but the fact he was watching porn makes me think the issue is me and not him. I do suspect I'm going to get a bashing here but please be kind.