Emily - your need to DO SOMETHING no matter what is shooting you in the foot here. Try to just sit with the discomfort and DO NOTHING in regards to the R for the next week, okay? Focus on GAL and other things instead. H will either prove himself sincere, or prove that he's not - wait and let it unfold.
IF it looks like he's sincere, then have a list ready of what it would take for him to win you back. Be very specific: he would have to stop all drugs, go to counseling, be completely transparent in all his financial and phone dealings, pay to support his family in a regular and timely way, etc. etc. Don't settle for less, but do give him a roadmap of what it would take.
Then focus on YOUR plans for YOUR life as if he's not coming back. If he steps up to the plate, great - then you'll both be in just that much better a spot.
If he doesn't step up to the plate - then you haven't wasted a few more months of momentum waiting on him instead of getting ahead yourself.
