From our reader Confusedbrokeenan44:
About two years ago, after almost a year of separation from my mom, my dad started acting extremely shady. I told my mom to confront him about it and they came out of a room 5 hours later and announced they were getting a divorce. I was pretty blindsided by it, but after hearing my dad's case I could "understand" that you just can't be in a marriage with someone you don't love anymore (as Louis C.K. jokes, no good marriage ever ended in divorce).
Then, just a year ago at Christmas, my dad told me that he had a 2 year old daughter by another woman.
Now he wants me to meet them both in the spring.
My question is, how should I regard either of these people?
He says he always shows her pictures of me and my brother (and she calls us big brothers) but I hate what her mother represents (the ending of my parents' marriage, even though she probably wasn't the direct cause) and the kid sort of by extension. I feel like I'm being unreasonable, it isn't like this baby has done anything to me and she's even my half-sister. But I can't see how I can reconcile these feelings. Any advice?