in all sincerity, open-heartedly, wearing one's heart on one's sleeve

to accuse an innocent

(informal) to be keen on sex, to like sex; to be sex-obsessed, to think a lot about sex

off to a flying start

(informal) on a whim, rashly, on the spur of the moment

(informal) quickly, approximately and without much care

(figuratively) to play the field, to play several sides at once, to keep plates spinning (especially in a romantic context)

(figuratively) to come down to earth

(rare, figuratively) to cry over spilt milk

Alternative form of pleurer sur le lait renversé