That's just it really, my DP never seems to want to have sex. He's affectionate in other ways, hugs me, kisses me, holds my hand etc but he never touches my boobs or caresses me or seems interested in anything sexual unless he's pushed. We've been together about a year and a half and he hasn't always been like this, in the beginning he was constantly wanting sex, often more than once a night and then got less and less to the point where we were only having sex 3 times a week. After a while, he stopped instigating and of those 3 times, he'd only instigate it maybe once. Then he stopped instigating altogether and we'd only have sex at all if I instigated it.
We've just bought a new house together, our first and it's lovely - we both love it and are very happy. Getting on great - but it's been two weeks in the new house and we've had sex once. And that was only because I physically instigated it. I put it down to him being tired (stressful job, moving house etc) but he goes to bed so late that surely he could make an effort and come to bed earlier? In our first night in the house we had planned a romantic bottle of wine and an early night - it didn't happen - we collapsed into bed around midnight after spending hours putting furniture together. Fair enough - I can laugh at that one - things don't tend to work out like a Barclays mortgage advert so I let it go ... 2nd night in the house his teenage kids were spending their first night here and I went to bed before everyone else to give them some "dad space" - fair enough. But the next night - I was looking forward to some intimacy with no real excuse not to - so he was faffing about on the computer and I said to him "are we going to spend some time together tonight?" and he said "yeah, give me until 9pm and I'll come and watch TV with you and we can have a cuddle on the sofa before bed." so 9pm comes and goes - no sign of him. 10pm arrives and I say "DP, are you coming to watch a bit of TV?" and he replies "yep, give me 2 minutes and I'll be with you." 10.30pm comes and goes and it's 11pm. I go into the computer room and say "I'm getting tired, will you be long?" and he says "no, nearly finished - 2 minutes". I go back into the living room. 11.30pm - I nod off on the sofa and am awoken by a loud advert. I go into the computer room and say "I'm off to bed, I'm knackered" and he says "I'm coming too, I'll follow you up." 1am - he wakes me up getting into bed and promptly falls asleep.
Repeat this scenario for the next week or so and that brings us up to a couple of nights a go. I say to DP "we've not spent much quality time together since we moved. Fancy watching a movie with me tonight?" and he says "yes I was going to suggest that myself". 9pm comes and goes and it's 10pm. Recognising the pattern I say "right, we either watch TV or a movie now or it will get too late". He agrees and sits next to me on the sofa. We sit there for 15 minutes and he gets up and goes into the computer room saying "I have a lot of faffing to do on ebay and I really want us to go to bed at the same time tonight so do you mind if I get on with it?" 
whatever. 11pm - I say "I'm going to bed soon" and he says "I know, I'm coming". 11.40pm I say "right, I'm off to bed" to which he replies "aww you're always going to bed early these days" and I remind him that 20 to midnight is not early. He agrees and says he'll follow me up. Needless to say I'm awoken much later by him coming to bed. He falls asleep within minutes.
Last night I'm feeling rather sexually frustrated and say outright "Can we have an early night tonight? it's been a while ... " I say this whilst kissing his neck - surely no mistake what I'm getting at. He twigs on and says "oo yeah, definiately! I'll look forward to it. 9pm / 10pm / 11pm - me "we going to bed then?" him - "yep I'll follow you up" He didn't.
What else can I do other than outright ask him to shag me!? The relationship is fine otherwise. I'm feeling rather undesirable :-(