<human>: I've been dating this girl for a little over a month and while neither of us were seeking out anything serious, things between us have been going so well that recently we've been talking about becoming officially exclusive.

As part of that conversation, she confided in me that she abused heroin for a year while also in an physically abusive relationship and that she is now 5 years sober. 

What questions do I need to ask her and myself before being able to commit to a serious relationship?

Please offer some advice, especially if you've struggled with drug addiction or dated someone who has struggled with drug addition.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Girl I'm dating told me she is a recovering drug addict (5 years sober) and I'm trying to figure out all the questions I need to ask her and myself before committing to a serious relationship with her.