What is the relationship between Trysdale and the other characters in the story?

This excerpt is from The Cactus by O. Henry

Explanation:

The theme is to tell the readers that things aren't always what they seem. Trysdale was reluctant to accept cactus as a marriage proposal.When he received the cactus, he kept it aside and didn't try to understand the tag. Trysdale's pride was the main source that lead him to a failed relationship and he was alone in the end.Trysdale couldn't stay with the woman because he did not know Spanish. He realizes that he was responsible for his sufferings.