Jaden Smith split from Sarah Snyder around two months ago.
The 18-year-old actor-and-rapper began dating the 21-year-old beauty in early 2015, but went their separate ways at the beginning of this year after they "started growing apart".
A source told Us Weekly magazine: "They had been on the rocks for a while ... and stopped having shared interests."
The pair used to regularly feature on one another's social media accounts but haven't posted pictures of each other for some time.
While it is unclear when Jaden and Sarah split, the 'Get Down' star said in January he wanted to quit Los Angeles because there are "a lot of bad things" in the city.
The 'Karate Kid' star - who is the son of Will Smith and Jada Pinkett Smith - made the admission after failing his driving test.
In an Instagram video - which Jaden made in the parking lot of the Department of Motor Vehicles - he said: "It's going to be so funny to tell my dad that I've failed straight up. I'm about to move out of LA. There's a lot of bad things here. Create the life that you want for yourself."
He then cryptically added: "Everybody follow your heart, you know what I'm saying? Do exactly what you want to do, be who you want to be. Don't try to be somebody else. It's hard these days to really create the life you want for yourself because there's nobody really here that's like supporting the youth or the youths' creativity."
Jaden - whose 16-year-old sister Willow has a successful pop and acting career - also teased that he has got some major things happening at the end of 2017 which are "beyond" his usual music and fashion pursuits.
The actor - who has his own clothing and lifestyle brand MSFTSrep - said: "At the end of 2017, I'm gonna do some dope - some really, really dope, inspirational stuff that's beyond just music and clothes. Nothing about this life makes any sense. Why aren't we Instagramming Live about people saving lives?"
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