Answer:
Based on his reference to the behavior of ancient Romans, Horatio intends to kill himself.
Step-by-step explanation:
Horatio is Hamlet's biggest confidant. Horatio claims to be more like the Roman nobles than the Danes, who caused the death of his best friend Hamlet.
Horatio wants to drink from his friend's poisoned cup, but he forbids it and tells him that he has to tell everyone what happened.