Call me rude/blunt or whatever .. but these kind a relationships ruins the “happily married life” of families. its not about 2 persons now, its about 1 family. the woman he is gona “officially” married and then the kids as well .. .. I can name this relationship as well but let it be unsaid ..
on second note: since you are claiming that this guy has been loyal to you for 5 years and bla bla bla .. let me put money on this thing .. after 2-3 years thsi guy wudn’t be loyal to you .. when he will realize that he can get “everything” from his wife, which is at home all the time and when he will have his lil kids around .. you will be just a TIMEPASS (which you are even now but you wun understand it). u wud def loose your self-respect infront of him and infront of the society. sooner or later, you are gona regret