NOTE:This will be canon and fanon!
Masky well your boyfriend name Tim Wright you know he’s a crazy serial killer working under the guy name slenderman,Tim didn’t even plan to date you,but you kept on pushing him to date you etc…so he gave in.You figure a lot about him,that he absolutely hates physical touch oh and he absolutely hates does stupid little love pet names,usually he only talked to you for a bit never ever gave you a single touch of affection nor a kiss it was such a dry relationship but obviously you were to dumbfounded to see it so you couldn’t really dodge the bullet.
You felt really bored and you wanted to see how he would act if you gave him a kiss out of nowhere I mean you never kissed him nor did he ever kissed you,so you decided to do it,so at the living room meanwhile he was watching tv…you walk behind the couch lean in and kissed his cheek…he was very quiet he slowly turn to look at him and glares “Don’t you ever fucking do that again.”
Oh…not what you expect nor thought of…but yeah he’s mad,he’s a literal machine not some romantic man.The kiss oh he totally hated it,he doesn’t even like romantic crap so what you did really pissed him off…he was just with you because you kept begging him to stay.
NOTE:He obviously acts like this because he’s a literal killer😞