he was scared what Jim would think when he got home she hopes he will still think she is pretty. When he came in his face was unable to read. Della was trying to reassure him that it would grow back and that she got him a present for Christmas to give to him.
He then took something out from his overcoat and put it on the table.He says"don't make any mistake,dell" about me, anyway you cut your hair will not make me see you any less. he told her to unwrap the package and it was a comb that he got with selling his very own watch.
this is situational irony because Della got him a gift but we where not expecting her husband to get her something and also sell the watch the thing he loved a lot.