"I've never felt this way before", said the now drugs-clean lothario. "I really love her. The thought of the sex I'll be having with her makes me feel totally spiritual and at one with the universe."
"Though I haven't met Gwyn, I've seen some pictures of her, and the chemistry was amazing. I've already started thinking about her during the sexual act, and I feel I may finally be ready for monogamy."
The pair are expected to be seen together at a glamorous celebrity event followed by rumours of late-night binges and sleep-overs.
However, the Get Him To the Greek star was critical of parts of the media who closely document his private life: "The press depict it as a whirlwind romance, but that doesn't mean real feelings aren't involved. I'm just hoping people give us the space to allow the relationship to work."
"I'd really like to settle down and have kids, but I won't be rushing things this time. I'm determined the relationship will be based on mutual respect and love - which is why I immediately offered Gwyn my shoulder to cry on following the breakdown of her marriage with Coldplay's Chris Martin."
Could this be the end of the former Sachs-gate star's famous womanising ways? "It seems strange to me now that only recently, I was having sex 20 times a week with different television presenters and glamour models. Gwyn has made me realise how superficial that all was. Deep down, I was disgusted with myself."
"From now on, I'm a one-woman man, all the way."