Friend who is a mum

I've been best friends with her for 7+ years. We are both in our mid-late 20s.

I've taken the career direction in life (for now) and my friend settled down relatively early, got married and had two kids. Her eldest is 4 and her youngest is 18 months.

I feel like ever since she had her first child, I've put sooo much effort into fitting into her life and doing family things with the kids, taking them to activities, basing our catch up around what the kids want to do and nap time, eating dinner at 5pm and never spending any time with my friend without her children. She is a sahm and her husband works mon-fri so i occasionally see her husband too if I see them of a weekend. But even if her husbands home, and is happy to look after the kids, she will have to bring them with her.

I've seen her without the children less than 5 times in over 4 years.

Now I understand she's a mum now and her priorities change. I'm her only friend. No one else really stuck around or made an effort when she had kids. Is it unreasonable for me to be a bit annoyed that she doesn't ever see me without the kids and refuses when I ask? All I want is to have a coffee or lunch with my friend as my friend, not a mum dealing with two kids, once every few months.