The Sage is reluctant to take on yet another jilted fiance, but feels that you case is worthy of attention.
The Sage recognizes your hurt and your confusion. Some lesser Advisors might suggest that you find a real dog, as it were, to take up with your former beau, and ensure that he walks in on them. He may then see the consequences of catting around, but I fear that regardless of what you might say or do, he will never change his alley cat behavior. Take solace in the knowledge that even were he to mend his ways, he'll continue to be on the run from the authorities for whatever years he may have left.