Have just been in the clubhouse for 1 hour straight. Managed to trade Doug with 2 pets.
With the first pet, he told me I had 12l gems and then traded with me. I went to Arte to check and I then had 11 of that gem. I never kept more than 3 of any gem before we met Doug so it seems he GAVE me gems??
After that it was all downhill. My 2nd pet on that account was ignored completely. Tried several different rooms, but could not get Doug to speak to me at all. Tried a 2nd account, thinking I could come back (ha!). The account had trouble with the phone, then locked up completely. 3rd account managed to trade with the first pet, but then got ignored again on the 2nd pet, until the hour changed. I'm thinking Doug needs to work on his people skills...
Sorry for the rant, I just needed to vent to someone who understands.
When Doug is acting normally, can you walk through him?
I am trying to fill in some gem color gaps so my encounters with Doug will be more successful instead of shamefully skulking away only to return and beg again. 
