Why did the two of you stop going out on the dates? Was it because he started saying no? How frequent were the dates when they were happening and how long has it been since you went out on the last one? Unless he specifically broke them off, then I'd say it's okay to throw it out there. Maybe suggest getting together for a drink after work one night, or a Saturday morning coffee and see what he says. If he throws up roadblocks then back off and leave the ball in his court.
