I have a friend, let's call him Adam. We're not amazingly close but hang out occasionally, he's naturally quite a secretive person and doesn't like me discussing anything about him with mutual friends, which I am fine with. Through this friend I have met another friend, let's call him Bill. I have only ever spent time with Bill when I have also been with Adam.
Adam asked me to organise for him and Bill to do a class that they are both interested in. It's quicker for me to do it as I have the connections and so I agreed. To register them, I needed Bill's phone number, which Adam gave me. Once I had registered them, I text Adam and I also text Bill to tell them some info. I guess I didn't need to text Bill as Adam would have passed on the information, but I like Bill and thought it would be friendly to tell him directly. Bill thanked me and we didn't text again. After this, when talking to Adam, he implied that he wasn't happy that I had text Bill and said there was no need to text him. Strictly speaking, it's true, I didn't need to text him, but equally I didn't see it as being problematic.
The course assessment was supposed to be Tuesday, but they got the day wrong and didn't turn up. Adam was very apologetic and asked if I could rearrange it for another day. I agreed and contacted the organiser to get another assessment day. The organiser replied with another potential date, so I text Adam to see if that date would work. It's now been 24 hours and although he's been on WhatsApp he hasn't read my message.
I don't know how much Bill knows about me rearranging the assessment but I don't want him to miss out on the class just because Adam is - for whatever reason - not responding to me. This isn't the first time he has ignored my message for more than a day. I need to respond to the course organiser and I don't want Bill to miss out, but I know Adam won't like it if I text Bill again. My idea was to text Bill, ask him if he can make the date, organise it for him and then text Adam to say that if he still wants to do it, he will need to organise it himself as I can't wait indefinitely for him to respond. I don't want to seem petty by not organising it for him, but I'm doing him a favour and he can't even find the time to say "that date works for me, thanks".
I'm too in the situation to be able to tell if he is being unreasonable by not wanting me to contact his friend or if I am being unreasonable by texting him when I know Adam is uncomfortable with it.