My situation is different (51 years of diving with thousands of dives vs your 19). I think you are wise in recognizing you are not ready for solo, although you do indicate you have a calmer approach to situations that occur. The unfortunate thing is that in situations like you experienced, the rules usually require being buddied up (as you should be at this stage). Since it was a club activity I would suggest telling the other diver you want to experience a wider range of dive buddies to find someone whose skills and dive preferences are more in line with yours. Once you find a good buddy (or a few), stick with them.
Although I've dived solo since 1961-62, I'm not solo certified and have had to endure "instabuddies," some of whom were fantastic and others just awful. I try to use tact whenever I can if the buddy is someone I won't dive with again. No reason to offend someone unless, as Wookie suggests, you might need a heavy skillet to hammer home the point.
I also consider the instabuddy's state of mind. If an instabuddy touts how great a diver they are and turn out to be a train wreck, I won't dive with them again. If they are honest about their capabilities ahead of time, and have problems, I'm much more patient and may dive with them again.
A good example was back in 2001 when I was diving as Jean-Michel's guest at his Fiji resort. I was buddied up with a diver who openly stated he was not bound by the rules and would dive as he pleased. He kept descending until I found myself at 125 fsw trying to follow him. I finally looked up and motioned to the dive master to get him as I was returning to 80 fsw to rejoin the group. I told the DM I wouldn't dive with this cowboy again so they assigned me a different buddy. That diver acknowledged he was not very good on air consumption and our dive would be short. He was correct, but because he had been forthcoming I told him to stop apologizing after the dive as he had been open about his limitations and I accepted them when I chose to be his buddy.
Although I've dived solo since 1961-62, I'm not solo certified and have had to endure "instabuddies," some of whom were fantastic and others just awful. I try to use tact whenever I can if the buddy is someone I won't dive with again. No reason to offend someone unless, as Wookie suggests, you might need a heavy skillet to hammer home the point.
I also consider the instabuddy's state of mind. If an instabuddy touts how great a diver they are and turn out to be a train wreck, I won't dive with them again. If they are honest about their capabilities ahead of time, and have problems, I'm much more patient and may dive with them again.
A good example was back in 2001 when I was diving as Jean-Michel's guest at his Fiji resort. I was buddied up with a diver who openly stated he was not bound by the rules and would dive as he pleased. He kept descending until I found myself at 125 fsw trying to follow him. I finally looked up and motioned to the dive master to get him as I was returning to 80 fsw to rejoin the group. I told the DM I wouldn't dive with this cowboy again so they assigned me a different buddy. That diver acknowledged he was not very good on air consumption and our dive would be short. He was correct, but because he had been forthcoming I told him to stop apologizing after the dive as he had been open about his limitations and I accepted them when I chose to be his buddy.