Françoise Sagan said this quote

For what Luc was in fact proposing was just a game, an enticing game, but, even so, one that could destroy my undoubtedly quite genuine feelings for Bertrand; and it could destroy something else within me, something ill-defined but fiercely felt, which, whether I liked it or not, was opposed to transience. Or, at the very least, to the intentionally transient nature of what Luc what was offering. And then, even if I was able to conceive of any passion or liaison as being short-lived, I couldn't accept in advance that it had to be that way. Like any individual for whom life is a series of charades, I could bear the charades only if they were written by me, and by me alone.