>Maybe things will change down the road but I’m in my mid 40’s sooo.

My dad was like this, his free-time basically revolved around us kids when we were younger and we had a great time. Then we got a little older and I could tell he'd be a little disappointed when we'd be busy with friends/other stuff on the weekends, but we'd still be together most week nights. Then when we went off to college/adult life, he really had nothing to do. My mom had friends to hang out with, but for him, she was all he had really and I think at that point it was too weird/hard for him to branch out and make new friends.

I'm not saying you shouldn't put family first, but it's not a bad idea to maintain some relationships or else that empty nest is going to hit you HARD eventually.