[Love❤️]
[Unsure💙]
[Friends🖤]
[If their already dating someone then it WILL be unsure other then Charlie an vaggie I guess]

Angel dust🖤

Charlie❤️

Vaggie❤️

Rosie❤️🖤💙

Alastor💙[probably🖤]

Molly❤️ [angels twin sis]

Cherri bomb❤️

Velvet❤️
Vox❤️
Valentino❤️

Husker❤️

Niffty🖤
=============
Helluva boss
[Love❤️]
[Unsure💙]
[Friends🖤]

Moxxie and Millie🖤

Verosika❤️

Blitzo💙

Loona💙❤️
-----------------
Reasons why everyone with a black heart isn't a love interest:
Alastor which I'm sure you know is aroace.
And Rosie is asexual but that doesn't mean that she can't love anybody.
Millie and Moxie are literally married.
Angel dust... Do I even have to explain... IS GAY.
Niffty is a straight ally.
============
Reasons why everyone with a blue heart is a maybe:
I find Stolas and Blitzo cute together.
Loona already has a crush on someone and she is bi
And Rosie... I don't see her in a relationship so I don't know.
============
Also I do not hate Valentino I but I do believe that majority of people who is in the hazbin hotel fandom HATES Valentino. Sorry for those who like Valentino.