Nah, you dont gotta marry anybody.... its just a way to show that you are committed.. and decide to give up all the freedom, which you would never want if you really like the person you are with.... So, nah.. marriage aint important..... but like i said.. it shows COMMITTMENT..... and thats the only you ALOT of people would wanna be..... THEY wanna MAKE SURE that YOU are gonna be together.... Legally!!! or in the eyes of the society.....