The Real Madrid footballer opened up about his painful break-ups during a Spanish radio interview, The Sun reports.
Ronaldo commented: "I've received many more knocks to my legs than my heart. But my heart has been hurt. Women have ended relationships with me many times. Luckily I'm a winner and I've always got over it."
The Portuguese sportsman also paid tribute to former Hollyoaks actress Gemma Atkinson, revealing that she helped him to improve his English skills when they dated in 2007.
He said: "I learned to speak English well with my girlfriend there. I lost my embarrassment. She helped a lot."
Speaking about his personality, Ronaldo continued: "I'm romantic and sentimental. My mum taught me to be true to myself. Who likes me the way I am likes me and who doesn't, doesn't. I won't lose any sleep."