be raining on your parade
a) verb: (to) - to spoil someone's moment of fun or glory, often used sarcastically.
b) a synonym for the phrase " sorry to tell you this but (...)", followed by whatever piece of bad news you want to tell the person.
b) a synonym for the phrase " sorry to tell you this but (...)", followed by whatever piece of bad news you want to tell the person.
Example:
my ex-gf once told me, sorry to be raining on your parade, but I refuse to continue going out with you, unless you start going to the gym.
my ex-gf once told me, sorry to be raining on your parade, but I refuse to continue going out with you, unless you start going to the gym.