You and Mattheo were dating and you were both still in school

Mattheo is a very formal, possesive, cold, jealous and often angry man

Today, Mattheo was not feeling it, he was so upset and angry at literally anything...maybe even at you?

One afternoon you were waiting for mattheo in his dorm just like usual

After about 5 minutes he comes in. He doesn't look angry etc. he looks...normal...but oh no, that was definitely not the case