Diane X FEMALE! reader

you are a half-demon half Reaper creature. but you are the last one the other have been sealed in Hell. all the holy knights try to kill you because you escaped being sealed in the underground (undertale refrence). you run through the forest escaping a holy knight. and you come across a tavern and meet Diane. a sweet female giant. and later your relationship goes wonky and you nearly break up. after the kink in the relationship............ (insert lemon here :)