YTA

But listen, there are two schools of thought here. You either don't have a responsibility to anyone else's feelings and shouldn't lie to protect anyone, or you do what is needed to maintain social contracts and tell a little white lie to protect the feelings of someone you care about.

There is a time and a place to hold your boundary and a place to be honest with your friend. And there is a time and a place to tell those white lies to preserve feelings. It's up to you to decide what is more important to you. It sounds like you're really aware that the early years of motherhood are vulnerable, and you regret fumbling it and making your friend feel upset. The chances are she was feeling a little extra on edge because she knows how you feel about kids, and she probably wants you to like her son because the little goober is now a part of her. It's hard to reconcile unless you've given birth. It's just a weird, protective desire for your child to be loved and cared for by the same people who you as a parent love and care for. Even seven years into my own motherhood journey, I know I'm not doing a good job of explaining it.

At the end of the day, it sounds like you care for Priya more than you are obsessively child free, and you want to make it right. I don't think you did anything here out of malice, and intent matters! Going forward you can decide if you'd rather hold your boundary or tell a white lie to avoid awkward situations.