The bickering: I love how they often are “fighting” over the simpliest things like homework or pranks and tho they complain about it, they actually enjoy it.
They make each other better: Ron allows Hermione to loose herself a little bit and Hermione helps Ron to realize he’s a great man, even tho he didn’t believe it at times.
Shared looks: When they’re worried about something (mostly Harry) they always look for each other and in a way they communicate just by their looks, and it gave us the most tender and beautiful scenes/moments.
Time: I really love how they took time to “built” their relationship and realizing about their true feelings for each other cause, I suposse, they didn’t want to ruin their friendship and thankfully it all went well.
Why not shipping them?: Like really, Rowling wrote this amazing story line that it’s hard to deny. All the signs are there, all the feelings so yeah, they’re an amazing couple.