There were probably two(?) [significant] gay characters, but neither were the "Satan" one and... I mean,
Like, I can see someone mistaking "Satan" for gay if they're trying really hard to force a character to be gay and aren't terribly bright.
Marking this because anything relating to "Satan" is a major spoiler, but I'll keep it pretty vague:
Like.... it's a good show, but to suggest it for gay relationships is.... very tone deaf.