The 28-year-old has recently been strongly linked with the likes of Manchester United and Arsenal.
Reina told The Guardian: “I am not announcing my departure – far from it. I’ve said lots of times I’m very happy in England and comfortable at Liverpool.
“But I’m not prepared to swear eternal love to anyone. That’s impossible. Any player who says that is lying.
“I can’t say much because I have a contract with Liverpool. But eternal love doesn’t exist. No one is master of his own destiny. When a player is at club he has to give everything – that is all you can ask of him.”
Reina’s contract with Liverpool is set to expire in the summer of 2016.
“But I would never say: ‘I’m never going,’ because even I don’t know that,” Reina added.
“It depends on how this season finishes, on how competitive we can be.
“It depends, above all, on the ambition of the owners in building a better team; hopefully, they will be generous in their efforts but we know the economic reality.”