My husband is the only man I've ever lost my virginity to, but he doesn't know much about my sexual history. Never anything physical before him, but I used to chat with men online (starting from when I was 15) and in a wash of hormones and a deep need for validation, I'd send nudes very freely and sext for hours upon hours. A few of them were long term online FWB. I believe my husband thinks he's the only one I've ever done anything sexual with, and I'm too embarrassed to bring up how freely I sent naughty pics and messages to complete strangers online (some were much older than me too). I don't think he'd be angry for me never mentioning it. Nobody knows about any of it, and as I said before, it was all online and nothing physically with anyone else.