I agree with a lot of what everyone said.

If the person starts controlling you.. and they don't let you control them at all. Why can't you have equal control.. noone needs to 'wear the pants' in a relationship. I think it stupid when people try and be in control.

Blames you for everything... you don't wanna end up with a blamer. If something ever goes wrong they will always find a way to blame you and put you through hell.

Someone that can't handle their anger. Everyone gets angry but If a persons out of control when they are angry its a no go.

Theres more but most of you have mentioned them already and to me these are the main things that put me off I guess.