@Anothernewname13
Also chiming in here to say it doesn't sound like you even like them anyway. It seems like they have their own life. They spent their life raising children, probably working full time. Maybe still working part time now, or even if they are retired, they are entitled to spend their life how they want. If they only want to see their grandchildren every couple of months, it's entirely up to them. 45 minutes away isn't the end of the world, but it's also not just round the corner either.
My kids live 25 minutes and 35 minutes drive away from us... in the city, and we are in the countryside. We get a visit from them probably once every six to seven weeks. Me and DH go and see them somewhere in the middle. So we actually see them once every 3-4 weeks. We speak almost everyday on WhatsApp or Twitter or Facebook, and have lots of laughs over the Internet, sharing memes and jokes.
I have tried to arrange more visits - and for us to see them at weekends more. But they are busy professionals, and are not available much. They have about two dozen friends between them, they travel a lot, they play different sports, and have busy recreational hobbies in the arts and media.
They're both in their late 20s now, and both got married in the past year and a half, and they'll be having children in the next few years, as they both want them.. If they do want to see me and DH 2 or 3 times a month, or 6 times a month then we'll be there. We'll see them as often as they want to see us. I certainly won't be making him feel guilty for not visiting us often during their 20s... as I understand they have very busy lives. I welcome them when they come and love to see them.
It seems to me you are just a little bit miffed. You're short of people to look after your kids.. It's really annoying when people have children and then expect their parents, (the children's grandparents,) to look after them and 'see them more.' THAT is why many people want the grandparents in their childrens lives more, so they can take them off their hands.
And if they don't step up and actually, (God forbid), get on with her own life, they are slated for it and called 'bad grandparents.' who the children don't even recognise anymore. (I don't believe that BTW!)
As a few posters said, I think you need to make more effort to go and see them. I had two kids under three and I was constantly going out with them, visiting relatives, visiting friends, taking them to playbarn, the zoo, the park, the woods, and the beach ... Sounds like you're making lame excuses, and you sound a little bit lazy and entitled to me, to be honest.