Well, she didn't do it because I kissed a boy. She did it because bad decision-making skills.
Being a demigod is a lot of...well, quests, fighting monsters, having half of your parentage have nothing to do with you. Things like that. I wouldn't say it's glamorous or anything.
It depends. Sometimes things come through from the dreams. Injuries can, too. Dad was just hospitalized because of his dreams. I haven't had blackouts or most of the stuff. I did pick up a few abilities, though.