My bf lied

A

There's this girl who "used to" have a crush on my bf and I always thought there was something sketchy abt this gal.

He always told me and reassured that nothing ever happened between them. Yesterday he told me they actually made out once.

I'm not jealous or anything. I'm angry and fucking hurt that he told me a million times that nothing had ever happened. Why the fuck wouldn't you just tell me, dude.