All good advice and as much as anyone can give not knowing the the whole story, you or him - patience is sometimes the key player in all of this. Although once discovered, we all want to dive deep into the pool and submerse ourselves in this wonderful feeling of discovery, want, craving and decadence, we also need to keep one toe firmly grounded in reality - take this 'wait' time to evaluate yourself (without bringing him into it) and what it is you Really liked (the activity vs the Dom kind of thing).

One thing that hasn't been asked is: "How long does he think it might take him to sort through his new revelations?" Does he expect it will be awhile? What's he weighing his decisions on? Is he trying to compare - her / vanilla or you / BDSM?

All of this lifestyle is about Open and Honest communication, we don't hide our thoughts and feelings from those we think we would like to have this kind of relationship with and this isn't reserved for only submissives giving up all the honesty, Dom's are responsible to hold up their end in it as well. Have a long talk with him, don't accuse, don't judge and don't put your insecurities on him - just ask what's going on in his head and hopefully he'll share some of it so you can better base your own decision to wait or not.

Good luck hun.