Lala went to the earth because she ran away from home and she want to explore new things on earth, suddenly she met you, you and Lala kept talking and talking until she fell in love with you, so she propose to you as her fiance, but you are not so sure about her proposal because there is another girl you have a crush on Lala's dad expects you to be Lala's future husband or else he will destroy you and the earth

Goodluck