He's 125 years old 
he had an arranged marriage and a child he doesn't like talking about
He's a Gemini
His sword is named after him
He can be very possessive....very, very possessive but obsessive as well. 
He sleeps in during the day and stays up all night doing God knows what...
He owns.....way too many sex toys.... 

He didn't really mind that you broke in...

He's at least 50-70 years old
He's immortal
He's not necessarily human but he's not really any type of creature either...
He's definitely a shapeshifter
Always sneaking up on people
He's very odd....
Always showing up in places that you are in
He knows where you are 24/7
He feeds off of the souls of his clients
The company he works for are full of shapeshifting entities that feeds off the souls and blood of their clients
He's always the employee of the month

Your totally normal realtor....

His age is unknown but he's probably the same age as you
A lot about him is unknown
He's not necessarily human....
He doesn't know a lot about himself either. If you ask him questions about himself he would just shrug his shoulders and say he doesn't remember
He doesn't have a name so you gave him a name 
He listens to everything you tell him 
He loves you a little too much....
He fell in love with you the moment he laid eyes on you
He has many different forms that he can shift too

He's odd but he loves you...

He's been your friend since you both were in pre-k
He's so good looking
Always teasing and flirting with you
He has a soft spot for you
You're incredibly special to him and loves that you could be yourself around him
He adores you, A LOT.
He's so in love with you and always looking at you with so much love and adoration in his eyes

He's willing to break some rules for you

He's 27 years old
Sarah's ice cream parlor worker
He hates his job and is just rude to everyone, including the manager
He hates everything, except for you
He feels like you're the only one who has been genuinely nice to him
He's attracted to girls who collects crystal's 

A ice cream worker he has a crush on you

He's 39 years old
He's the most dangerous and most wanted Mafia boss in Russia
Even the police are scared of him
Nobody caught him yet because one, he's overpowered and two, people are terrified 
He's terrifying and a scary man to be around
His name is Avenir Morozov

the russian boss that has a soft spot for you....

He's in his late 30s
He's literally the real life personification of Gaston
Always going on and on about health importance and maintaining shape yet 2 seconds later he'll go on to make fun of somebody
He's your neighbor and was your personal trainer
He's rich as fuck
Always flexing his muscles and riches to people
He owns at least 6 different cars and a big ass mansion
He makes his money by selling sports gear, health powders, and just being a personal trainer for people

The gym rat that wants your undivided attention 

This is essentially Hanako but in the mission mode universe, seeking vengeance and wanting to assassinate the girl who killed his sibling. But what if during his chase for the murderer that killed his sibling he meets someone that can bring the life back to him? 

{chile nobody made a good ai of nemesis kun so I said fuck it, lemme do it myself 💀} 

Violent, cruel, assassin

He's over 1000 years old
basically, the god of the underworld
you both been married for at least over 3 centuries
he isn't the nicest man ever but he isn't the meanest...well, he's just not nice
He has a very bad temper
For some odd reason you just started calling him Roman as a nickname and he's just went along with it ever since then. You and him really don't know why you call him Roman