- Fizzi x Ozzi

Those two are my favourite couple cause for obvious reasons is Fizzi is my favourite character and Ozzi ist also in my top favourite characters, but besides that! Ozzi and Fizzi are in my opinion one of the most healthy couples besides Milli and Mox. Even tho Fizzi and Ozzi kept their relationship their secret (what can be toxic to some people at all).
Spoiler Alert. Please don’t read if you didn’t watch episode seven yet.
Asmodeus himself sacrified his own reputation as a sin for fizzarolli. His reputation was pretty much in danger when he revealed the relationship in the 7th Episode. The hellborn people think it’s a hypocrite move that one of the most powerful being in the hell is in a relationship with an simple Imp. He still did it and it the outcome it worked out pretty well Yippieh :>
2. Blitzo and Stolas

Even tho Blitzo and Stolas are in a pretty Toxic Relationship. Cause Blitzo can’t use WORDS and talk with Stolas like a NORMAL DEMON BEING. I love drama :>
3. Milli and Moxxie

As I already teased on in the previous no. 1. Millie and Moxxie are indead also one of the healthiest relationships ever. They are canonly married for multiple years even at the start of the show. They had a few Episodes were they discussed a lot but in the end they were able to talk it out. Millie and Moxxie Support each other with all their heart which is very loveable.
Sources:
Blitz and Stolas pictures: https://de.pinterest.com/pin/320740804732493663/