Exes Jennifer Aniston and Justin Theroux attend the SAME birthday party

Jennifer Aniston and Justin Theroux attended the same birthday party this week.

However, the pair narrowly avoided each other, as the actress arrived at Jimmy Kimmel’s son’s birthday party at the same time her ex Justin left.

The couple announced their shock split earlier this year, after two years of marriage.

Happy ONE year birthday Billy! ???? A boy who in 365 days has done more for American national health care than we could all wish to do in our lifetimes. He doesn’t even know yet how courageous he is. An honor to know him and his incredible and equally courageous parents. ❤ Thank you @CedarsSinai & @ChildrensLA #registertovote

A post shared by @ justintheroux on Apr 22, 2018 at 1:10am PDT

According to DailyMail.com, Jennifer looked nervous as she arrived to the party.

The actress reportedly arrived at 12.15pm, with Justin leaving at the same time after he was there for about 40 minutes.

The source added that Justin was alerted of Jennifer’s arrival.

The news comes after Justin posted a sweet tribute to Jimmy Kimmel’s son Billy. 

A yr ago today, God gave us this tough little boy. Today, we thank the nurses & doctors at @CedarsSinai & @ChildrensLA who saved his life & those who shared thoughts & prayers. We cannot stay quiet. Please wish Billy happy birthday by REGISTERING TO VOTE! vote.gov

A post shared by Jimmy Kimmel (@jimmykimmel) on Apr 21, 2018 at 2:29pm PDT