Hermione reads a letter to a hospitalised Harry from Ron about the end of their friendship after Ginny's death. Harry feels guilty. Post-war, some language, mild HermioneHarry.
Harry and Ron fight about Ginny's death in the war. Ron's angry that Harry doesn't seem to need anyone; Harry tries to explain that he does need Ron.
Draco needles Harry, who responds violently. Post-war. Dysfunctional relationship (if you don't already know--and if you don't, I hope you're single--it's not OK to hit your boyfriend). Some bad language.
Life is easier for Ginny when she's with Luna.