Perhaps simple denial? If you continue having contact with them after giving them some money but they keep elaborating on how the money helped or satisfied thei

Perhaps simple denial? If you continue having contact with them after giving them some money but they keep elaborating on how the money helped or satisfied their (scammer's) wishes, the victim may not think they have been scammed. Like "look she's still talking to me every day. We're close. A scammer would have vanished by now"