You don't always have to play 1. e4 e5. Mix it up, play 1. d4 every now and then. Or something else.
Even if you always play 1. e4 e5, one of you will sometimes play different subsequent moves. I mean, you have the Ruy Lopez, the Italian game, and the Petroff.
In learning to play chess, it seems like the same moves over and over again in the beginning... The same 1. e4 e5 2. developing knights. 3 developing a bishop or moving a pawn forward... and it just seems like really mundane. Even in the beginning book I am reading, the Logical Chess Move by Move, it seems like every single game starts with the same way. I guess my question is does strategy and tactics come from once this mudaned moves that everyone makes every single game come into play cause it feels like the pros even make the same boring moves over and over. They said that according to game 3 of the championship yesterday that the auidence groaned when one of the players played the same opening sequence again. Just curious cause you see all these tactic trainers and puzzles but it seems like everyone uses the same moves over and over again