Thoughts on Alone Time

My husband and I work opposite shifts. I only see him on the weekends. I want to have a healthy relationship but I do get quite resentful as I am a “single” mom during the week and he has a ton of alone time. The only time I have to myself is from when the kids go to sleep until I go to sleep from about 7:30-8:30/9. On the weekend my husband wants to spend that time talking with me after the kids go to bed and I really only want to be alone. I’m not really sure why? What are some questions I can ask myself to find the root cause? He stays up real late and sleeps in so gets a bunch of time to do whatever he wants. I typically use this time to read and work on self improvement. I struggle on when else I could be doing that. Any advice?