Final answer:
Emilia is insulted when Bianca suggests that she is involved with Antony and brought her with him into the military camp.
Step-by-step explanation:
In the given context, Emilia is insulted when Bianca suggests that she is involved with Antony and brought her with him into the military camp. This insult implies that Emilia is being viewed as morally compromised and lacking in virtue. This can be seen in Shakespeare's play 'Othello', where Emilia is wrongly accused of infidelity by her husband Iago, causing her great distress.