“Old friend” either means an elderly dog or an individual of the same gender with whom you have been secretly in love for more than a decade. There are no other possible interpretations.
This is blatant archenemy erasure and I won’t stand for it
Bold of you to assume the archenemy isn’t the individual of the same gender you’ve been secretly in love with for more than a decade
Bold of you to assume the archenemy isn’t an elderly dog
bold of you to assume your enemy isnt a former lover turned elderly dog via lychanthropy