I have many friends in the town where my mom lives and where I grew up. It's 5 hours away from where I live now. I've been there many times to see friends, without visiting my mom. I've also been there many times to visit mom.
Same for the city where my MIL lives, 3 hours away. Sometimes we see her, sometimes we don't. One time we see one relative, next time the other. If one of them created drama over us not visiting him or her every time we're there, I'd be less inclined to visit them at all, TBH.