Irene suffered for 3 years yet she didn't care about herself and only wanted the baby to survive, and then after those hundred of years of being a dragon she was still thinking about the baby yet after all that she abandoned her.
That was a very sad ending to their relationship. All that effort wasted mad me really sad.
I went back to chapter 510 to see if she was the same dragon that attacked Zeref & Natsu's village but it doesn't look like it, that silhouette of that dragon looks too different.
At least we now know where Erza gets her selflessness from, whenever she gets beat up she only thinks of her guild mates instead of her own well being.
And the scar was also explained, that's an arranged marriage for you, true love doesn't always from them.
And lastly, did anyone else realize how badass Erza looked in that last panel with that new armor. Realistically though it should not help her, way too much difference in power plus Erza has been messed up multiple times during this war.
Maybe it's the perfect time for Acnologia to make an appearance again? I think only him or END could defeat Irene and August.