What is aeneas weakness?

Aeneas is distracted from his destiny by the temptation of love, and he is only able to regain his focus when he realizes that he will not only be depriving himself of an empire, but will be denying his son the great future that awaits him on Italian soil. This circumstance recalls the importance placed on family, as has been seen in Aeneas's relationship with Anchises.

In other Words, his tender heart or his temptation of love