The Rolling Stones rocker, 62, is said to be smitten with 30-year-old Brazilian beauty Ana Araujo - who he has been dating for several weeks - and thinks she is a good influence after helping him quit drinking again.
A source said: "Ronnie now thinks Ana could be the woman to make a life with. She's such a positive influence on him and they've very relaxed in each other's company. They're happy enjoying the simple things in life like staying in, making meals and watching films.
"He couldn't be happier and there's already talk of them getting married as early as this summer."
Ronnie - who was married to late model Krissy Wood from 1971 to 1978 and divorced second wife Jo Wood last year, 24 years after they wed - met Ana shortly after splitting with 21-year-old Katia Ivanova.
His 15-month union with the former cocktail waitress ended amid a series of explosive rows and friends think coming out of such a tempestuous relationship has made Ronnie appreciate Ana even more.
The source added to the Daily Express newspaper: "Ronnie hasn't felt this happy and focused for a long time and he knows there aren't many women capable of having such an effect on him.
"He feels he has someone very special in Ana and is ready to make the ultimate commitment to her."