Mel Gibson may be a tad unstable.
The actor has said all sorts of crazy stuff to Oksana Grigorieva, his estranged ex and the mother of his eighth child, but hey, not ALL of it was negative.
We will never forget the insane phone calls or his recently-revealed threat to blow her brains out, but TMZ has just revealed ... an intense love letter!
Back when they first met, he proclaimed his love for Oksana in embarrassingly intimate prose, handwritten even, to "my sweet beautiful little Russian."
Mel wrote the letter after spending a passionate week with Oksana in the beginning of their relationship ... while he was married to wife Robyn, natch.
Mel says, "Firstly - I LOVE YOU!!! ... I could never let you go ... I could derive more fulfillment from a mere thought of you than anyone could imagine."
I'll have soul gasms and perhaps even orgasms thinking of you!"
Gross. Mel says he feels like a "new man," promising "there is no way I will squander something so precious!" How sweet. Cue the Mel Gibson tapes!