Soulja Boy and Blac Chyna's relationship started as a total troll job against Tyga, but just like in a rom com ... it transformed into the real deal.
Sources close to the new couple tell TMZ ... when they initially started chatting a couple weeks ago by sliding into each other's DMs, they concocted a plan to piss off Tyga -- start pretending they were dating.
Tyga - Chyna - Ex - Soulja - Boy
As you know ... Tyga is Chyna's ex and Soulja Boy and Tyga have had serious beef in 2019 over who had the biggest comeback last year. So, we're told they both were...