I love her. She's getting in the way.

I am really struggling with this. I am married to a wonderful man. We have a dog, and she's been my best friend for over 3 years. I love her so much, but lately she's been driving me CRAZY. I don't understand what is happening, but she will not leave my husband alone. For example, she sleeps in our bed with us and that has never ever been an issue. The last few weeks, though, she has been ALL over my husband, to the point that we can't even cuddle (She's a big dog). We have roommates so we can't just kick her out of the bedroom at night. It has gotten so bad that I can't sleep because it's almost like she is trying to push me off the bed. My husband and I haven't had sex in over a week, which is NOT normal for us. She has just been so needy and clingy. I feel crazy. I've never been "jealous" of a dog but this is getting really out of hand. She will seriously pin my husband down and just smother him. All night! It was cute and funny at first, but it's not anymore. Honestly, I'm worried about my dog. It seems a bit like maybe she's having anxiety or territory/dominance issues, and I don't know what to do about it or how to help her. I love her so so much, but this is starting to impact my marriage. What do I do? I'm so confused here.