I feel so alone

I'm currently working on transitioning my 2 month old to his bassinet we were co sleeping. My husband got sick about 3 weeks ago and slept on the couch while he was ill but discovered how nice it is not to wake up to a crying baby. He's been on the couch ever since. It was fine while I was co sleeping but now that my son is in the bassinet I feel so alone. I often just bring my son back to bed so I can sleep but right now its 4 am and I put him back down and now I'm alone again. I hate it. I miss my husband so much but he refuses to come back to bed. He says he needs to sleep so he can go to work and I'm a SAHM so I feel this is all on me. He holds his son maybe an hour everyday in the afternoon and I have him the rest of the time. I will end up crying myself to sleep again as I do every night now.