It’s a classic “boy meets girl” story. Girl places ad in Craigslist’s “Women for Men” forum; boy responds and kicks off a long, flirty e-mail exchange; boy ends up sending girl cheesy cell-phone photos of him with his shirt off; girl forwards photos and e-mails to Internet gossip site known for lurid stories about politicians and their hook-ups.

Oh, almost forgot: Boy neglected to tell girl that he’s married, with children, and happens to be a Republican congressman from New York. Or rather, ex-congressman:

Rep. Christopher Lee resigned Wednesday after a report claimed the married Republican congressman sent a shirtless photo of himself to a woman on Craigslist.

Earlier Wednesday Lee, asked by Fox News about the report as he was walking to his car, said he was not willing to talk about the issue, adding “I have to work this out with my wife.”…

A Lee spokesperson earlier told Gawker that the congressman believed he’d been a victim of hackers, noting that Lee sent a message to his staff about a security breach on Jan. 21 — though the published e-mails were dated a week earlier.

Here’s Gawker’s post laying out the evidence, replete with shirtless pics and the obligatory nod at “hypocrisy” because Lee supports DADT and opposes federal funds for abortion and is therefore guilty of “publicly scrutinizing others’ sex lives.” If you’re wondering whether this means the seat will flip to the Democrats, probably not: His district has a Cook PVI of R+6 and has been represented by a Republican for all but 16 years dating back to … 1857.

Between this, the “revolt” over Paul Ryan’s spending proposal, and last night’s Patriot Act debacle, this hasn’t been Boehner’s best week, huh? And guess what: It gets worse.

Update: Why did Lee resign when more prominent Republicans, like Vitter, have survived infidelity scandals? Did he simply feel duty-bound? Or was it the fact that that photo of him with his shirt off is so goofy that it would follow him around forever if he hung on?

Update: What could go wrong?