I Opened Up to Kanye ... AND HE BETRAYED ME - DRAKE

Drake spilled a whole lotta tea about this past summer's beef with Kanye West and Pusha T ... telling LeBron James it all started with what he thought was a friendly meetup in Wyoming ... then got very dark.

Drake opened up to Bron and Maverick Carter on their new HBO show "The Shop" on Friday about what went down with Ye ... which ultimately led to diss tracks, competing album drops and the big reveal -- Drake has a son.

There's so much info dished out it's hard to know where to begin, but Drake suggests the nastiness started when Kanye essentially lured him to Wyoming to record music ... but ended up backstabbing him and betraying his trust.