"Leo was getting a lot of pressure from friends, family, and Bar to take the next step in their relationship and get married," a source close to the couple tells us. "He wasn't ready for that."
Not ready? Don't let the baby face fool you, Leo is 36! How long does this party boy need until he feels ready to call it a day in the clubs?
"Leo has been spending a lot of time with his boys," adds our insider source. "A few weeks ago he was partying in Cabo San Lucas with friends Lukas Haas, Bradley Cooper, and Cindy Crawford's husband, Rande Gerber."
Refaeli (who turns 26 next month,) on the other hand, has been keeping focused on work and has been in Berlin all week, where she tweeted: "In Berlin to launch my new Escada fragrance campaign :) this is my welcome- cute! Big day ahead.. Expect pictures!"
"It was amicable, they're still friends and they are still talking. They just grew apart and went their separate ways," a source close to the couple recently told Page Six of the split. "Neither were ready to settle down, and both have busy careers that have been taking them in different directions."
While DiCaprio's rep couldn't be reached for comment, rumors of a split first started circulating when the couple were spotted partying separately in NYC after the Met Ball.
But this shouldn't come as a huge shock, considering DiCaprio and Refaeli have been breaking up and making up for the past four years.
Sound familiar? Leo pulled the same on-again-off-again shenanigans with Gisele back in the day.
Careful Leo, Bar may just end up with some hunky quarterback, too!