I broke up with my girlfriend and I am very sad. Will my girlfriend laugh at me because I am sad?

It depends on the extent of the relationship between you. If she didn't just want to "just have fun", she wouldn't think so. Generally speaking, girls are more cautious when they fall in love. They will consider the long future and have endless imagination about their love. They all hope that they will always have a good relationship with their boyfriend. If she doesn't like you, she usually won't agree to be with you. So, she shouldn't be just "playing for fun". A more accurate evaluation method is to recall whether she has paid anything for you and whether she has been willing to pay anything for you. If she is willing and does it, she likes you and won't laugh at you. In fact, no one is happy when a boyfriend and girlfriend break up, so why make fun of each other. No one knows who will live a happier life in the future, so why worry about other people's jokes? It's okay to live a better life than others. May you be happy