Is It Haram to chat ualy Online?

ive been talking to this guy named josh, hes christian, and ive met him online in a game, ive send him fake pictures of a model he thinks its me, he says he wants to be happy and start a family with me he wants me to go to alabama to meet him and marry him, we talk about ual stuff, im muslim, i dont wnat him to see my real pic not that im ashamed or anything or im ugly or anything, its just that i really am attchaed to him we talk about starting a family and with each other, and to the point where we talk on MyspaceIM on skype and he heard my voice and my sisters voice and cousin, anyways i dont wanna tell him we will never be together because thats the truth but he'll say whats the point of talking with each other and im playing with him, anyways im really attached to him and i like him he send me pictures of himself with his cellphone and he wants me to call him, he says he like my voice and personality from skype, anyways i wanna know what islam thinks, should i stop talking to this guy or should i talk to him as a friend just not ually.