First, I apologize if this becomes a little ranty. My parents filed for divorce last year due to my father cheating (divorce was finalized at the end of January). Last Friday, he married his 24 year old girlfriend in a civil ceremony with only my grandparents invited. He is looking for my approval on his relationship and his new wife is just one year older than me - so I'm not quite sure how to deal with her. Advice?
FYI - w've never met (she doesn't live in the States) and the only contact we've had is when she commented on family photos on social sites.