I know how it might sound, but I'm dreaming about my husband to move out and so I could stay just with our son. We are having lots of troubles in relations and I'm seriously considering divorce.
Anyway, I'm sorry for your situation and what I want to say here is that before I got to this stage where I'm enjoying absence of my husband at home, I was in position where I had no idea what to do without him. *also should add that I'm not from England, have nobody here apart of my DH and DS and moved here quite recently.
My DH has a terrible habit - when we are fighting, he instead of apologize and fix it immediately, going out... Meet his friend, getting drunk like a pig, coming back (if) at 2-3am. All that of course without letting me know anything. He even celebrated New Year without me.
So, getting to the point: I had no idea what to do. All day Im with baby, in the evening baby goes to sleep and thats it. I'm on my own, no appetite, dont want to do anything and so on. But I throw all that mess out of my head and looked at things under different angle.
You should do the same. Its difficult now when baby is small, but it will be better later. Lots of women are single parents and its ok. Your priority is your baby and your baby needs to have a happy mom. Think about what is interesting for you, what can involve you, so you wont be just hanging around in your misery and waiting when the night will pass.
I started going to the gym, if I cant go to the gym, I do workouts at home (got an app on phone). Because instead of eating chocolate ice cream and cry, I'll better be healthy and beautiful.
Im almost finished with movies, started reading more books. Entertaining and also kids related (you need these to know what to do with the kid. Also found them better than mom's forums).
Im also doing French language course online. Wanted to to it long time ago, started few times earlier, so now instead of staring into TV with my DH, I'm doing something useful for myself. Also going to find few online courses work-related.
Eat well. Learn how to cook some new healthy dishes. Youll need that for your kid as well anyway.
Find some moms meet ups in your area. It might be good for you to meet other moms and have a chat over a cup of coffee, lunch, etc.
Take care of yourself. Find out about some hair/facial/nails/body treatments which you can do at home. It works with everyone, if you look beautiful, you'll feel beautiful and happy.
Also I was doing paintings when DS was smaller and couldnt get to paints and brushes.
Find what fits you. And just do it. Even if you dont want, go and do. Make it your habit.
Also think about what you was doing in the evening when you was single. Of course you cant go out as much as did (if you did), but staying at home alone was ok, right? You had what to do. So its the same now, just in addition you have an amazing baby, who will be your companion for whole life. I'm thinking about that and I couldnt be more happy. Partners come and go, and its always for good.
How old is your baby?