he have a bipolar disorder. You're close to the Gallagher family, Ian would sometimes run to you when he have problems because he believe that only you can handle him and not judging him.

you always treat him like what he deserves and he didn't even realised that he have fallen for you for each days.

one day, he's punching the wall in his bedroom when no one is home but you are because Fiona told you to drop things at the house. When you heard it, you walk upstairs to Ian's bedroom.