When Haruka runs into the safehouse in chapter 109, after hearing the tale of exactly how Mamoru lost his eyesight; she hugs him.
Chapter 60 where Haruka get's a birthday cake and eats it with the rest of the team
Chapter 202 is where Haruka confesses her love for Mamoru and even kisses him after he is beaten to a pulp for perhaps the first time in the story. The rest of the chapter after that is quite a Tear Jerker.
The very end of the manga (chapter 214), where not only Mamoru and Haruka are reunited... but after a seven years Time Skip, they getmarried.