Hey @Former-Member ,
In my eyes, I'd rather wait and find the 'perfect' person than have anyone who I later can't live with.
Maybe it's not about comparing yourself to your school mates?
When I used to compare myself to school mates, I got so depressed. I felt they were moving on in life. They got married, had kids, travelled, had a career etc... and guess what? They did it all early. Now, do you know what they've got to show for it? Divorce paperwork.
The fact that your relative mentioned they couldn't understand why you are single actually tells me they see you have a lot of qualities. (That's my interpretation yesterday).
I was brought up quite conservatively. I was typing what they taught me, but upon second thoughts, this may not be the place to share.
Since I'm interstate at the moment, I met someone who is now in her 50s. She waited and waited and waited. She was in her late 40s before she got married. Her son just turned 6.... imagine that.
Anyway, I just hope something changes for you - at the perfect time.