Hmm.. Guys.. Bring ur problem to ur world forum. Respect the op. He or she asked for top clan relationships in general, gwydion as an example (which in fact i could see the op was 100% correct lol...).
IMO nothing called a relationships related with 2 top clans in every worlds. There will always be frictions between them. That will make the game still exciting to play otherwise it just boring. Just dont involve too much emotion for the drama. U r playing the game to release ur stress from ur real life lol, not to gain more stress. If u like to ks or mess up on boss, do it! If u want to scam ppl, do it! If u want to just stay at castle all the time and commenting on every char u see there in area message, doit and enjoy it! Nothing could stop u. As long as u can release ur real life stress into the game thats fine lol, noone will arrest u for doing that.
Ur real life condition is more important. Game is just a game. Be as bad or as good as u can to entertain urself in the game.