Title: Not Today, Satan
Genre: Contemporary Fantasy / LGBT / Drama
Summary: When life sucks, there's only one solution left: Sell your soul to the Devil, so he'll be your friend.
Twenty-three-year-old Sibyl "Sib" Marlowe is a dejected ex-grad student who has suffered from loss, rejection, and depression. In one desperate attempt to form a connection with someone, she does the unthinkable: She summons the Devil himself to be her friend for one year. In a year, her soul will go to Hell, but at least she has someone who cares, even if it's just contractually.
Once the deal is sealed, Sib doesn't know if there's any going back, and she's not sure if her relationship with Satan (who turns out, shockingly, to not be such a great dude) is changing her in ways she likes.
https://tapas.io/series/Not-Today-Satan1
I actually did start a companion webcomic, but I haven't posted it on Tapas because I wanted to get further along; I only have the novel version available (I write more than I do art), but here's some art: