i've stepped back from an rp partner who does this. i get that it's a brain thing and a self-esteem thing but i can only take so much of pouring praise and interest and initiative into the same person repeatedly, when they never seem to reciprocate that effort to anyone else. maybe it'd be different if i see these people make efforts and get turned down or ignored but i think they just take the players in their inbox or patting their butt for granted.