13. Watching People Kiss In Public
You never know where to look. When two people are madly in love and can't keep their hands off each other (which you're not bitter about in any way shape or form) it can make most people around them feel very uncomfortable. This always seem to happen when you're single too so it makes you feel even more awkward because you're convinced that you are forever alone and the only thing that will be eating your face in the morning will be the dozen cats that you're bound to end up with.