Kevin Mirallas has accused Everton of breaking promises over a transfer from Goodison Park.
And the Belgian international says his relationship with manager Roberto Martinez has become “awkward” as a result.
Mirallas had been linked with a move away from Merseyside in January, and his future with the Blues remains shrouded in uncertainty.
The 27-year-old has one year left on his contract, though Everton have the option to extend it by another year if they wish.
Mirallas, publicly, has stated that he expects to remain at Goodison next season, but in an interview with Belgian newspaper De Standaard, he has appeared to cast fresh doubt on the issue.
Kevin Mirallas celebrates after scoring Everton’s winner against Villa
Read more: Mirallas hints at new Everton deal
He said: “Borussia Dortmund and Atletico Madrid were interested [in January], but Everton obliged me to stay at the club.
“I understood because our young group had performed below expectations. So I had to stay.
“But in the second half of the season I was suddenly playing less games. There are promises broken and it makes for a somewhat awkward relationship with the coach. Soon, I will have a conversation with him.
“I have had a beautiful three years with Everton. I have experienced many great moments and for that I must thank the club. I don’t know whether I will leave, it is a decision I have to make in consultation with my family.”
Mirallas’ comments are in sharp contrast to an interview he gave to the ECHO back in April.
Then, he said: “There was a lot of paper talk about my future last week, but I am very happy here and I see next season the same shirt I think.”