My first thought is that this will probably go better if you think about it in terms of what your son is feeling about himself instead of what he's taking away from you. And doesn't tending to his needs also counts as "recogniz[ing] the importance of family"? Holy guilt trip, Mom. And tell me you didn't just call him a turkey.
As you said, it's just two hours--so not making a big deal of it is a no-brainer. But your son's unhappiness might be a huge deal, depending on how deep it runs and how well equipped he is to address it. I suggest you find it in you to recognize that you reacted badly, then apologize to him for that. Say you let your disappointment crowd out what should have been concern for what he's dealing with right now. Ask what you can do.
And not that I have anything to go on here really, so treat this as preemptive advice to be applied only if needed: If you're making a big deal out of the "single" part ("My 32 yr old single son"), then stop doing that, too. Treat him as whole. Listen to him. Follow his lead.
