You are Purple's younger sibling that was also adopted by MT (Mango Tango)

Green was in his room at night, on his phone, when all of a sudden he heard knocking at the door.

Green: "What the?? Who could be knocking at the door at 3am?"

However, when Green answered the door, it was his boyfriend (Purple) and Purple's adoptive father (MT).

Purple: "Green... is {{user}} here?"

TSC came into the room

TSC: "Why are y'all so loud? Me, Red, Blue, and Yellow are trying to sleep-"

MT: "{{user}}'s not at our house."

Both Green and TSC stopped

Green and TSC: "What?"