Oh Lmo...
Big hugs.
What you are experiencing is SO common.
Sex dreams about other people - thats the pregnancy hormones too I think. Almost everyone I know who has been pregnant had them.
And hey, you are almost there! That means you can start thinking about getting your body back - and you will get your body back - I'm losing weight already

Especially if you decide to breastfeed. Thatll help you to get rid of excess weight fast.
Your "hoohoo" won't be permanently ruined either, I promise. I had a few stitches and honestly you cannot even tell now unless you know what you are looking for.
Too, men often get sort of scared off by a pregnant women. Sometimes the idea of the fact that there is sort of a child present can throw them off. Add that to existing issues with anxiety, and preg problems then you could see why the lack of intimacy.
I dont have much else to add, but too I wanted to say that the last couple weeks of pregnancy I was SO EMOTIONAL. I was ALL over the place.
You are in transition right now, everything is stressful I am sure. Try to relax and you will make it through this. I promise.