Jennifer Aniston and Justin Theroux have been engaged for 18 months now.
The couple is said to have had no time to even think about the wedding, and apparently they are not spending much time together.
Speaking to Radar Online, a sour close to the couple said: "there is absolutely no wedding talk or planning going on. Publicly the couple is saying it's because they are just too busy with work, but if they wanted to get married, it would happen."
Former Friends star Jennifer spent her 45th birthday with good pal Courtney Cox after Justin couldn't make it sue to work commitments in New York, while Justin headed to Sir Philip Seymour Hoffman's wake solo while Jen stayed in LA.
"The relationship is definitely at an impasse. Either it's going to fizzle out, which seems likely, or they get married." The source added.