Ask yourself why you would do something that is unimportant to you that you believe might hurt someone else that you love?
Anyway, just a heads up -- visiting Classmates.com is a big red flag, unless you were just looking up your old guy friends. Among those in troubled marriages or divorced, Classmates.com and Reunion.com are pretty much cliches in terms of where people "not wanting to cheat" who are lonely and unhappy in their marriages or recently divorced go to seek some sort of connection and wind up hooking up. Kind of like the good-intentioned guy's match.com.
FWIW, I'd suggest it is best for your M if you keep your online communication of any sort in a very public forum like this, or give W access to your private email accounts. Public forums keep you accountable while still giving you private space, like group therapy lol. Other kinds of unfettered intimate (I'm not suggesting sexual intimacy BTW) online communication like private chat and emailing make for a pretty slippery slope...
