From actually watching some of the sonic boom game, rise of lyric, I've actually started shipping these two a bit, be it pairing wise or as awesome partners (since in the beginning of the game they are usually thrown together with tails and sonic rushing off). It's just a nice dynamic.
Plus as well, I imagine how Amy is really into the whole 'lara croft tomb raider' kind of thing, finding out stuff about old civilisations, how they lived, so on and so forth (thinking back to a part of the game where Amy thinks a place she and sonic come across is beautiful whilst it...well, it could be debated), and Knuckles would get influenced by her enthusiasm as a Treasure Hunter (I think?? Something along those lines) and thus they go out on ADVENTURE~
And when they both get like that, they tend to forget other people (Tails and Sonic) are in the room as they excitably talk in half sentences to one another and what they may find.
Right! I definitly can see that going on Shes some what arguementative, and looses some patients of knuckles Dim-ness ^u^; But, she still seems very comfortable with talking with him And even he seems to feel the same, even though hes not as witted with words as Amy, even sensitive about it (shown in the archie comic) But still very much enjoys to tag along beside her, and her bringing him along
I think thats kinda what makes them and even better team together Knuckles being the brawns and Amy the brians, but they still have things incommon, their both great fighters, and Amys very caring, and Knuckles (being somewhat of a brute) is yet sensitive and very caring as well
I was though, dissapointed to find out that Knuckles is no longer a treasure hunter in the Boom universe, that wouldve fallin in greatly. But you know, like you said, he could be influenced by Amy But im still physiced about these two, and i enjoy them both more then the others in the Boom show ^¬^