Multiple domestic violence charges.
Not smart enough to stay away from an ex who'll have him arrested
Someone you have to visit in jail.
Trashes your car, your apartment, your appliances when he's upset. (Is he three years old, for Heaven's sake?)
There are worse things than being single. One of them is being legally or morally bound to someone who has nothing to offer you.
You work on the relationship, you hire lawyers for him, you visit him in lockup, you probably lost the security deposit on the apartment he wrecked, you had to get another car when he trashed yours,-
Exactly what is the attraction? Sounds like 24 months of H__l.