Out of concern and devotion, Antonio has followed Sebastian and Sebastian is grateful for his care
Antonio confesses that he has previously been in a sea fight with Orsino's men and he is at risk of arrest in Illyria
To avoid trouble, Antonio goes to an inn, leaving his purse for Sebastian's convenience
This scene stresses the intensity of Antonio's bond with Sebastian, as the older man seeks to protect and care for his young companion, it could be argued that he is the only character who acts selflessly in the service of someone he loves
Sebastian seems to rid the burden of grief as his speeches are brief, perhaps indicative of embarrassment and may suggest he isn't sure of how to respond to the persistence of Antonio's devotion