!!!My opinion about the ending!!! SPOILER ALERT!!!!
I really liked reading it. The story was deep and really interesting.
I am a fan of unexpected endings and really liked that one. Even through I found Futaba and Taichi cute, I wasn't sure about their relationship as lovers. Perhaps I also just thought so and had my doubts about them because I found it really heartbreaking how Touma suffered through the story.
Many manga don't show a realistic way of love and arouse the impression that the main couple will always stay together after the manga ended. I don't have a problem with that and like to read it, but sometimes it's also great reading something like this. So I really liked their break up and how Touma and Taichi ended up together(even married to each other). (I know that they also could break up after the end but I mean it's more realistic in my opinion that they choose to be together while they had already experience and not as highschoolers that still try what's right or not for them.)
The only thing I find a bit sad after reading it is that we didn't get an actual picture of them together because of how the last chapter was written. I would have liked to read what Touma actually said and not just the response of the others and his hands in some panels. I agree with an already written comment here that it also would have been very interesting to know how they managed to get to the point they are at the end of the manga, but I am fine with it like that.
A really nice manga I would recommend reading, with very interesting topics and social problems.
Ao no Flag