5:50 PM PT -- Chrishell's doubling down on her ex's take on the breakup, saying ... "Jason was and is my best friend, and other than our ideas for family ultimately not being aligned, the amount of respect and love with have for each other will not change going forward."
She added that she's choosing to view their relationship as a success, regardless of how everyone else sees it.
2:44 PM PT -- Jason has broken his silence on the split, only saying loving things about his time with Chrishell, he says it was their views on their future and as a family that seemed to cause the end of their relationship.
Jason Oppenheim and Chrishell Stause are no longer a couple, deciding to go their separate ways 5 months after going public about their relationship ... according to a report.
As we previously told you, the "Selling Sunset" costars announced that they were dating back in July. Chrishell had posted lots of photos of the two on a romantic getaway ... with some PDA mixed in there as well.
As you may know, Chrishell works at The Oppenheim Group, which is an LA real estate company founded by Jason and his brother. Chrishell had previously told People it was "easy" working with her BF because they were best friends before and worked together all the time.
Chrishell works as a private contractor for the OG, and that almost certainly won't change moving forward. People was first to report the news of the split.
We caught up with the Chrishell just last week and asked her thoughts about dating a shorter guy -- after Tom Holland and Zendayacalled out the ridiculous standard -- she says height is no biggie in relationships, but "it's more about what's inside."
So far, no word on what may have led to the split...