The 22-year-old Spaniard, who moved to Stamford Bridge from Barcelona for £4.35m in 2011, is on loan at the Spanish club for the season.
"My position is as I've always said, I want to be here," Romeu explained. "I want to give everything to Valencia, have a great year and to finish the season well.
"When the season is over, we'll sit down and talk. I've always said that I want to be comfortable where I am and happy.
"I will fight to stay for another year, or however many more."
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