Relationship as a step parent.

I’m not sure if it this the right group but I just want to explain myself. Firstly, I’m completely understanding to the fact that when you step into a relationship where the other has a kid to be fully committed to the person and the kid(s). I’ve been with my spouse 3 years, own a house together coming up two years. I’m all for his son and I truly love him to bits the problem I have is that I’ve been absolutely patient and understand to the face that he has his son every weekend so I haven’t expected much on the lines of “date night” ect. We don’t go out and if we do, it’s only when it’s a family thing with his sister. Other than that, that part of our life is almost non existent. I get that he wants to spend every moment with his son but once every couple of months can we not be able to go out together and enjoy ourselves as adults and our relationship. I never pry at him to choose a date night over his son and if I do ask if we could go for dinner one night he makes me feel absolutely guilty and says no. Almost like how could you even ask me to not see me son! I get it, trust me but we have to be a couple outside of parenting as well. All parents, together or separated do that! There’s not one person whose a parent that just doesn’t go out with their significant other. He also have fully opportunity to pick his son up during the week for a couple hours after school and I don’t understand why he doesn’t do that? Then that weekend time won’t. Feel like if I don’t have him with me then I won’t see him until next weekend and he could just think of, I’ll see him during the week so it’s okay I go out for a date night. Like I said, I’ve been completely understanding to the fact he’s a parent and his child is priority I just didn’t think we would NEVER go out! I feel horrible feeling this way.

Suggestions given: to go out during the week-

He works so he won’t go out and have a couple drinks with me or for a dinner.