Nicole Scherzinger and Grigor Dimitrov's relationship in trouble?

Singer Nicole Scherzinger is frustrated that owing to her hectic schedule, she is unable to spend quality time with tennis star boyfriend Grigor Dimitrov. Though the two are committed, their long distance relationship is under strain. This is not the first time that we are hearing news about trouble in paradise for the X Factor judge. In May, there was news about the two having issues, but a romantic break in Capri, Italy in June ensured that things were back on track.

Nicole Scherzinger

"Nicole puts her heart and soul into X Factor and Grigor has a busy training schedule. They are committed to each other but are frustrated that their only real communication is on the phone," a source told British tabloid, The Sun. Last month, Scherzinger spoke about her ambitions of getting married and having kids.

Grigor Dimitrov

"In five year's time, hopefully I'll have a family. Touring, singing, creating movies, and a family. I want to be like Sade, JLo, Bette Midler - all of them are still killing the game. I'd like to get married one day. I'm looking for my wedding. I think the heavens will sing when I get married," she said then.

View Photos: Arjun Tendulkar - The boy who is more than Sachin's son