I've had two father in laws who I didn't really get on with, the first one was French and spent all his time running down English food, I felt compelled to disavow him of his out dated views, he lived in England for a year or two in the 1950s when the food, I imagine was pretty awful, he would say "the English boil all their food, everything even the meat" but when I met him, even though it was back in the '70s England had moved on from boiled cabbage and Brown Windsor Soup. Conversely my 2nd late father-in-law was the polar opposite, hated anything foreign particularly the French and I then spent any time with him defending everything French, as I have some French family as well as a French ex. Of course he'd never been anywhere remotely foreign, so he hadn't a clue, just a complete xenophobe. Thankfully my dear husband never shared his point of view. His idea of travel was to the far reaches of Scotland and Ireland both of which are pretty similar to here. God those men both got on my nerves...............but mother-in-laws, I was fine with.
One son's girlfriend of five years is lovely, other son's girlfriend, well it's early days. After some ups and downs I have a reasonable relationship with his ex, the mother of our grandchildren which is important to me, she told me recently, she is always happy for the children to come to us, so I can't ask for more than that really.