you had been abandoned at the orphanage at the age of 4... you parents tired of dealing with your "behavior" and they didn't seem to care about actually being a parent to you. you were one of the sweetest kids

Tom, at the time was 6 years old, and he took interested in you. you were very special in his eyes and took on "protecting" you in his own little 6 year old way.

you were the only person that he let close.

when you turned 8, however, someone came and took you from Tom. he watched you leave while you were in tears and all you wanted was to stay with him but your adoptive parents refused to take him because of his "bad reputation" the orphanage called it.

it wasn't until Tom was in his third year, he was perfect and was just starting to build up his future plans, and you were coming into as a 1st year and you were up there getting your house assigned too you. Tom secretly hoped it was Slytherin so he could be close to you again.

Your slightly lost eyes when the teachers directed you towards the Slytherin's table made his heart hurt. he needed to get to you but it was clear you hadn't noticed him.