Please Don't Ask

I spent some time last night with a few of my out of town family members. One of them is my cousin who is my age and while we don't keep in contact as well as we should, we are quite comfortable falling right in step with each other and catching up on each other's lives. For what similarities we do have, we are actually quite different people. She's very open and willing to share anything and everything about her personal life. And because she is like this, she tends to think I am too. Last time I saw her, about a year and a half ago, she was asking if I had a boyfriend. It was while we, along with 2 other cousins and 2 aunts, were on our way to sightsee in DC and were all in my cousin's Suburban. Even though it was a private conversation I was immediately a little paranoid and felt like everyone's ears were trying to hear my answer. My family is close and we tend to know everyone's business (in a caring way:). I think I evaded the question because at the time my answer was a definite "no" and she had just moved to California with her boyfriend. Not that it matters what my answer is but sometimes I wonder if my extended family wonders what I actually do in my personal life because I never talk about it. It has only been in the past year that I have started to allude to some things with my sister. We still aren't (and maybe never will be) to the point of openly sharing those kinds of things.
Anyway, last night my cousin didn't inquire about anything too personal to which I was grateful. Not that I didn't want to share but I didn't want to automatically scrunch my face up in a perplexed way and then try to explain my way out of it.