Maybe a lil harsh
Well you can't change what you have done but you can act with a little bit of dignity now.
If he texts don't text back. End of. Just delete it before you even read it if possible.
You gave him a chance, a chance I wouldn't have given, to be upfront and he wasn't.
Why would you even want someone like this in your life?
As for the social networking site, de-friend him and leave it at that. You only went out for two months and if you pull the plaster off now and stop allowing contact you will be fine in no time. But if you decide to continue to obsess over this then it is only you that can be blamed for the unneeded broken heart that can only ever come from this.
You said you'd see where it was going, well this is where it's going. Time to move on.