1. They might mean that he might use “being scared” as an excuse to get close to you or maybe want to stay next to you throughout the entire haunted house. Basically, you’ll be sure of his feelings by his body language when you go to this event together. :)
2. She obviously doesn’t want the same things you do. You want commitment, and she still wants to play the field. It’s really hard to stay in a relationship when both sides are pulling so far apart like that. I really think you should talk to her more about this and find out what she really wants.
3. Your best friend is indeed blind, because it seems like he really likes you! Hold on to this, and don’t wait too long for a chance to keep it.