Iago drives me crazy. I really don't lie his outlook on life. He's so selfish, negative, and worst of all conniving.

Barbantio is already having a difficult time with the thought of his daughter running off and marrying a man thought unworthy of her. Iago just accelerates everything and makes fun of Barbantio for not doing anything about it. He basically insults him and antagonizes him about his daughter's fall from reputability.

The passage in 1.1.88 also depicts Desdemona as helpless. Iago describes it like she was taken against her will by Othello, but that isn't what happened. (I just get so fed up with Iago and his meddling.) -He also makes it seem like Desdemona is just a material possession, like she's been stolen. He keeps pushing and manipulating until everything falls apart.