Also, just what do you think of your friends if you think they'll act like elementary school boys >.>
I mean, to be fair, when their friends heard about another couple getting together their immediate move was to go tease them. I understand why they'd be reluctant to mess with the dynamics of the group by singling (coupling?) themselves out like that.
One thing I like about recent chapters is how it's showing Chidori and Nanoha slowing maturing in both their own lives and goals, and in how they approach their relationship. It's still sweet and blushing and heartthrobs, but they're also learning how to support each other in thoughtful, adult and loving ways. The kind of stuff they'll need to do if they want to keep their relationship going even as they deal with becoming adults. It's the sort of growth you only really get to see in long-running series.