Running away isn't necessarily a bad thing if it is to put distance between yourself and danger (definition is left to the individual).
Things happen on YOUR time. It is YOUR life. If he is serious and gets sober (not dry) and really works at recovery, who is to say what the future will bring (for either of you).
Don't let him pressure you. Don't pressure yourself. Live life on your own terms. I think this is exactly what "taking care" of yourself means. It is not necessarily an action (though I like those too).
I think it is only fair to allow the "other" person in addiction space and time to heal and gather their thoughts - heck - the A get detox and rehab, it is the least we can take for ourselves.