If your friends laugh at you and your girlfriend then don't pay any attention to them, and stick up for your girlfriend. That will make your relationship go farther. And you can also know that if...
The correct phrase is: "Laugh and the world laughs with you. Cry and you cry alone."The meaning is that it is better, and more popular, to be positive and light-hearted than pessimistic and sad.
I think you can. There was one time I was playing a board game with my family and my dad wrote down one of the funniest answers ever! I read it the first time in my head and then started dying...