Sex life going downhill

Since I’ve been pregnant it’s been hard for me to get wet. It’s been extremely embarrassing but I finally filled him in with why things have been a lil off with sex. I recently figured lube would help and when I started to put it on him, he stopped being hard, and said “this is cold. It isn’t working for me.” I walked out, got a towel and tossed it to him and said “here just forget it”. I laid down and begin crying. It wasn’t what he said, it’s how he said it that made me feel like he wasn’t even trying, into it or even understood I was trying my best to spice things up or how it could be effecting me emotionally. I want to be able to make love with my man and satisfy him. I don’t want him to grow bored with me or things get stale between us. We got into an argument and now he’s downstairs. I don’t want us to be in this mental or emotional space but I don’t know what else to do. Are there any suggestions to spice things up because it doesn’t seem like anything is working and I’m starting to feel very insecure about it.