While this person certainly has a substantial, easily bruised ego, I think it would be helpful to have more context for "I found out that Adiago had no plans to honor my commissions due to my leaving." the screenshot only says, as best I can figure out, that the person wasn't going to do it in that one stream or whatever, even if entirely out of spite.
Though the making up of extra fees just because Adiago felt like it and promising to work more slowly for the same reason would in themselves justify a page here.