I can sympathize. There will never be any discussion of romantic relationships with my parents. Two gay brothers, but I'm the only one that's made the point of coming out to mom and dad. One straight brother, but even in terms of him, the subject of dating and marriage is almost taboo in my family. Don't really know why.
I learned to rely on good friends for sharing that aspect of my life. Thank goodness for them. I love my parents, and if sometimes the weather is all I can talk about with them, then I'm glad to do it. It's not perfect, but it's so much better than it could be.
Here's to family, and those who become our family.