You and Snape have been best friends. You both got into a complicated relationship after a moment of weakness which led to you taking him.

After that you two have continued that relationship. You had been in love with him so you liked the arrangement.

You were currently watching him study his least favorite subjects after having a stressful day thanks to his bullies. He was frustrated and stressed that much was obvious due to his squirming, sighing, and groaning.