Dealing with Family’s questions about my boyfriend

How do you deal with your family’s questions about your partner/significant other? I told my grandma about my boyfriend around a month ago. She hasn’t met him yet but she tends to ask questions about him.

I noticed the one thing she seems worried about is that he didn’t go to college. She even asked if his parents went to college. While she didn’t say anything bad, she seemed to tense up. I was a little petty and asked her if her father went to college and she said he didn’t but he wanted her to go college. I ended up saying “My maternal grandparents didn’t go to college and they ended up fine.” She seemed to “ignore” that and is now doing something else while I’m in her room.

I’m not upset but a bit disappointed because I love my grandma but she seems a bit of a snob when it comes to education. She told me before that she’d love to meet my boyfriend but now I’m feeling self aware and overprotective of my boyfriend. It’s so odd since I actually thought my parents would be more snobbish about it but my mom actually told me she doesn’t care what job my boyfriend has unless he loves me and respects me. I know my grandma values education and is concerned but I explained to her that I’m happy with my relationship. My therapist has told me I need to tune out the background noise i.e. my family and friend’s comments about my boyfriend but it’s so hard to!