Hi!
My FH's mom and biological father have never been married and were not together for very long. He didn't even know who his father was until he turned 18 and came to college, but has since spent a good amount of time with him, as he lives in the city that we are both at school in. His mom does not like to mention them (she even got mad when I referenced his dad and step-mom's parents as my future grandparents).
I have since changed my mind and decided to ask his very young aunt (she's only 2 years older than him). However, she is 1 of 2 I have not asked yet. Recently his mom said (to him, not me) that she has some "concerns" about our wedding, and proceeded to ask if his aunt would be a bridesmaid and tell him that it would be ridiculous if his half-sister was asked.
How do I respond to this? I was considering making his half sister the second of the two I have not asked yet. I'm not particularly concerned about making her mad but I'm worried it will look petty.
