I am getting married in roughly 6 months and my FH has a 5 year old daughter from a previous relationship. I come from a blended family where I grew up knowing my fathers ex-wife as my Aunt. She was always around and there were no issues, to my knowledge, between she and my mom. She and my dad have 2 kids together and she is invited to my wedding. Here's the deal, I entered this relationship hoping that it would be a good situation, not that we'd be BFFs, but that we could all be adults. Initially it was cool until I started seeing how disrespectful she is to him. I would always be cordial regardless of my feelings and would even pick his daughter up from her. She friended me on FB and, while I knew she just wanted to by nosey, I accepted. I posted a status and she commented with something I didn't like. I had him confront her about it and ask that she not do that. That prompted a phone confrontation between she and I that was initiated by her. Again, I would still be cordial because at the end of the day, there's a child involved. Some months go by and his daughter says to us that her mommy said she doesn't like me. When my FH confronted her about it, she said that she didn't like me, didn't respect me, and nobody could make her. At that point I was done with it. Then a couple months later she was asking me to do something from her daughter. The situation is cordial again now, but I don't want the stress of wondering what person is gonna show up on that day. The issue is, his daughter is really excited about being a flowergirl and I don't think she'll let her be in it if she can't come.