Married but sleeping alone 😔

My husband has been sleeping on the couch for months now. Voluntarily might I add. I literally have pretty much begged him to come to bed with me but it's either. I don't want to wake the kids up that early. (When he has to leave for work). Or both of the kids end up in there with you anyway I don't get any sleep. I AM SO SICK OF SLEEPING ALONE!! I am fucking married. What is the point?! I put my kids in the bed on purpose now because I don't like sleeping by myself. It's been like 2 months since he started this and our kids are 4 and 1 so he was perfectly fine before this. I don't understand. I'm to the point now where I want to leave. I'm not going to beg him anymore. What do y'all think? What would you do?