So there is a young, inexperienced dom/sub couple here in my city--dom is 26, sub is 22. The dom tends to be emotionally insecure, and they are both trying to make the relationship work without really understanding what power exchange looks like. The dom doesn't like other guys expressing too much interest in his sub--the sub will be moving away in 6 months, and the dom isn't really sure why the sub is into him, although the sub says he's very committed for the time they'll be together. The dom also seems a bit flaky--he says that I'm the only dom in the city he's interacted with who hasn't been rude to him. During the time I've know him, he's had a tendency to ignore my messages, which I've overlooked even though it irks me a little. I've been trying to mentor them, but it's been hard finding a way to teach them. I can't use the boy as a 'test model', because that looks like I want the boy. I can't work on the dom, because he's uncomfortable being submissive. I've suggested that maybe I could sub for him for a bit, but without being able to show him what to do, he's still going to be fumbling around a lot. Finally I figured out something. I offered to invite a slave I know up from another city. The four of us would have lunch together, with the two subs serving. Then I would play with the slave and let them watch. They could watch, join in, or play alongside if they wanted to. The only catch is the slave is HIV+, but has an undetectable viral load (meaning it will be very hard for him to transmit the virus, even with unsafe sex). I told the boy about him two weeks ago, and give him a link to the slave's profile, which explicitly states he's poz. The day before the meeting, I told the dom that the slave is poz, and emphasized that they did not have to play with him if they didn't want to. So the slave drives up, and he and I set things up. I buy lunch fixings. 15 minutes after they are supposed to arrive, I get a call from the boy, saying that he's feeling freaked out about the salve being poz. I repeat that they don't have to play with him, but he says he doesn't feel comfortable, so they cancel. I'm feeling a little disrespected personally, and very offended that they would be so rude to the slave who drove 90+ minutes to help teach them. This morning I wake up to a message from the dom. He apologizes for cancelling, but then goes on to tell me that I was very disrespectful for not telling him more than a day in advance, and telling me I need to apologize to him. I told him to fuck off, because I feel that he was extremely rude to me--he had his boy call rather than calling himself!--and I feel that I've done nothing wrong. Did I over-react?