"Scott and Sofia are the type of couple that constantly split up and get back together," the source said. "It's all very dramatic, and then all good again."
Could it be the fact that Scott is still very involved with his ex and baby-mama, Kourtney Kardashian?
Last week, Sofia 'unfollowed' Kourtney on Instagram after what seemed like years of being amicable.
Kourtney never once followed Sofia back during Scott and Sofia's relationship, so maybe Sofia has had enough of playing nice with nothing in return.
However, Sofia recently told Entertainment Tonight that she does not want to appear on Keeping Up With the Kardashians anymore.
"I want to get into acting!" she explained. "I feel like, for a while, I kind of held back on things because I was afraid of failure, but 2020 is [the year of] no fear! I'm gonna be doing acting stuff really soon," adding that "great things are happening and I'm really excited about it."
In the summer of 2017 when the pair were FIRST spotted together at Cannes Film Festival, Sofia shut down dating rumours.
She wrote, "Just so everyone can get their panties out of their asses, Scott and I are just homies #relax."
