I had a similar thing for about 2 months. It started at about 8 weeks, finding certain smells really overpowering. Then it got worse, as most smells would make me sick. We had to stop cooking in the house because of it, and as DH got in charge of the food preparations, I stopped going in the kitchen altogether. The simple fact of going from room to room would be enough to send me running for a bucket. And, I absolutely dreaded having to use the loo, if you know what I mean.
In terms of touching and closeness, it caused a real mess. I couldn't stand DH breathing next to me. And would run away everytime he got close. It's like I couldn't stand his smell or his body warmth, even though the guy is the cleanest man I know! It took a while for him to understand that it was nothing personal, it is quite hard when you're normally really close to them. I just blamed it on the hormones and explained that I felt almost soffocated if anybody got too close to me.
It's really frustrating, because you need a hug when you're feeling like that, and you can't get it from the person you want it the most. I tried to make it up to him sometimes when we were out in the fresh air, for example, and I could stand being close for a couple of seconds, I would surprise him with a flash hug or a kiss. It helped him realise I loved him and I missed him as much as he did.
I'm in my 18th week now, and although the nausea has just passed, I still find a lot of smells really awful. I try to avoid them, still not cooking myself but I can take a bit more hot food. And the main thing, I can finally get close to DH. Abscence makes the heart grow fonder, it really is true. You'll appreciate your partner even more when it's all better. Just hang in there, try to read about it and show him that it's just another unfortunate "joy of pregnancy".
Best of luck, lost of patience to your DP, just keep reminding him that you miss him too and praise him for his understanding. x