You're not a bad guy for wanting to break things off at this point. Ok, lets say she did in fact look just like her pics. I hate to say this, but even when people present themselves exactly as they are to someone they meet online, its pretty much a crapshoot as to whether or not they'll "click" in person. I've met a number of people online and had FANTASTIC chemistry.....that is, until we met and I ended up saying "no, this isn't going to work...."

So just be honest. Tell her that you don't see a future between the two of you other than friendship. She may be mad, she may feel rejected, but you owe her the truth.

No, its not right that she put up old pics of herself online, so that's on her. (Duh, duh, duh, I mean everyone knows guys are visual creatures, so why lie? They'll find out sooner or later that you're not as you look in your pics!) I'm a BIG stickler for the lying bit, so even though it is about looks, SHE STILL LIED! So not cool. I don't put up with liars, and you shouldn't either.

By the way, I think I know how you feel. My looks have changed quite a bit over the past few years, and I don't want to date people who don't take care of themselves either. Its not about being shallow. If anything, the rest of the world behaved in a shallow manner toward us when we didn't look so good, am I right? I do believe I am... So no shame in wanting a partner who takes care of themselves and looks good.