For the record, Cooper has been in a relationship for years with model Irina Shayk with whom he shares a young daughter.
Gaga said she and Cooper worked all week on their performance and she relinquished control of directing it to him.
Cooper directed their film and had a vision, she said, for how their Oscar performance should play out.
“From a performance perspective, it was so important to both of us that we were connected the entire time,” Gaga said. “I’ve had my arms wrapped around Tony Bennett for three years touring the world. When you’re singing love songs, that’s how you want people to feel.”
Bradley Cooper’s ex-wife angry at backlash over Gaga duet comments
Gaga won best original song for “Shallow” at the Academy Awards and her performance as an up-and-coming singer who falls for Bradley’s established — and troubled — musician character in “A Star Is Born” won raves.
Gaga alluded to those acting skills as part of the reason viewers were so entranced with her and Cooper’s Oscar’s performance.
“I’m an artist and I guess we did a good job,” she told Kimmel. “Fooled ya!”