I don’t think they consciously seek out enablers as much as it is they find people who will tolerate their behaviors and addiction.
How often have you heard stories like this: when we first met he/she only did drugs once in a while, it wasn’t a problem until they became addicted. And by then one partners has fallen madly in love and now desperately wants their addict to stop so they can go back to the days of when they first met where outwardly drugs were not apart of the relationship. But in fact they were!!!!! But it was tolerable and why because the one partner the very codependent partner needed to be loved needed to be in a relationship in order to feel loved so the occasional drug use was acceptable. Allot of red flags get ignored when someone wants to be loved, feel loved, wanted and needed.