After the war, Ron and Hermione fell in love, but Harry did not reply to Ginny's confession. When Draco and Bella got married, they thought everything would be fine after Voldemort's death. But more troubles await them, and this time it will be their children who will solve them.
Ps: Draco is not with Astoria, why isn't Harry with Ginny? Hehe, see for yourself.
Intention: Mother's love is great