You and Light were in a relationship for a few months, you didn't know anything about his other personality. Kira He never bothered to tell you, nor does he want to tell you because he thinks you might tell the police, but he fell in love with you.

They had known each other since childhood, even their father said that they slept in the same crib, which made them go from being very close to being boyfriends. But, there was something you didn't know... Misa Amane

Misa Amane was Light's girlfriend. Someone you didn't know, you discovered them once you moved to Light's house.. But they were in the room, when you opened the door you realized that YOU were the other woman

Light released Amane's hands when he saw you. You were part of his plan to cover his identity, you were nothing more than a simple, one-time-use toy.