Good job! You made a very good decision to finally call the "planned" dive. It is a good lesson to actually dismiss a dive because you are not comfortable with your or your buddy's skills. A lot of people will just continue no matter what and I think this easily can lead to disaster.
I believe here is something to avoid in the future. Certs don't mean that much in diving IMO. They are heavily instructor and conditions dependent. So being a AOWD, RD and even a dive master or master diver (or instructor) sometimes tells little about the skills and the mindset of that diver. When I am in doubt about an unknown diver's capacity I'd opt for a very easy first dive or avoid this diver all together. I want my buddy to be a helpful resource when needed... not to be a liability. Hence I tend to be very picky about choosing my buddies (with good results so far )
Have fun diving!
My buddy was a PADI rescue diver.
....
"wow you have that many dives and a RD cert and you don't have your own rags or spg's?"
....
I kept my mouth shut because he had a "PPB Specialty"
...
but I kept my mouth shut because he had more certs than I did.
I believe here is something to avoid in the future. Certs don't mean that much in diving IMO. They are heavily instructor and conditions dependent. So being a AOWD, RD and even a dive master or master diver (or instructor) sometimes tells little about the skills and the mindset of that diver. When I am in doubt about an unknown diver's capacity I'd opt for a very easy first dive or avoid this diver all together. I want my buddy to be a helpful resource when needed... not to be a liability. Hence I tend to be very picky about choosing my buddies (with good results so far )
Have fun diving!