Why Can't People Understand How My Life Has Changed?

I had a lot of friends when I was single. I had a few good friends when I started dating.

However, I find that the friends that I had when I was single. They are the same people, just different. 

And I don't know if it's my outlook on life nowadays or theirs. I have priorities. 

When I was dating, it was him and the school I intended on graduating from. And I did. 

And I know I'm not the only one who's ever gone through it, or even as bad as some other people. 

I have a friend that tried to conceive for 17 years, and I finally did. So I consider myself lucky :)

My parent is even more my best friend and now my dating is the light and focus of my life.

Why can people not understand this? I just don't understand.