Shari.
Probably more than one Dragon. Anger for one and frustration for another. Maybe disappointment too.
Knowing you can have as many dogs as you want is enough if having lots is not practical. (There is a cat here that needs a home real bad but it is full grown and I know mixing grown cats doesn't work well so I can't bring it home. All I can do is hope someone else takes it. I do want it though. )
As for longing for another dog, that is normal, not a dragon. My friend Monica has lots of rescued dogs but then she has a farm so lots of room. She also has as she puts it too many cats. (how can you have too many cats.)
I always wanted a farm and there were many reasons why I couldn't have it. I got it, I enjoyed it and sold it when I couldn't work it anymore. I didn't need it, I could have continued to work on someone else's farm but that "prove a point" Dragon made me do it. He (she?) has made me do a lot of things I did not need to do. So watch out for this one it lives comfortably and unnoticed among us.
Sometimes what we want to do conflicts with, something that someone important to us wants, and this too is not a dragon even though many others circulate around and sometimes land. Frustration isn't really a dragon but if it was it would be a small one. Anger on the other hand is a large flaming one. It can be harnessed and used to good if done right though. Give him something inanimate to work on. A punching bag or a wood pile work well. Helps you sleep too.
The neat thing about My hobbies is that they can be set aside for awhile, another pet would demand care and attention and be another expense I can't afford. Logic as that may be it might not stop me.
No fool like an old fool.
Davit