Alone AF

I feel so alone in my marriage since having our sweet girl. My husband never wants to do anything with us and it's like pulling teeth to get him to spend time with me. I wanted to take a walk up to our local donut shop today for National Donut Day and to get out and about and asked if my he'd want to meet us there since he's getting out of work early and then go to lunch and he'd rather eat 2 day old pizza at work then come home. Like wtf. I'm so ready to separate. I express my frustration and loneliness and he gives zero fucks. What do I do. I'm so over it.