hi!
dear, i can understand him in a way, as Im so obsessed with time-keeping, luckily my boyfriend is also very strict about that...
In a way, I think that when people are constantly late, that they dont anything seriously and therefore think that they are not taking me seriously... and believe me i have ended relationships because of being late! Its not being too strict, its just that it makes us feel very insecure...
hope you understand my point of view and that all works out!
all the best! x