I think I helped you with a previous question about this guy... and to answer you directly, YES! NPD folks are not minor league players when it comes to lying and manipulating - they are MAJOR leaguers! Because they lack conscience or empathy, they see people as tools to use to meet their ends. If their end happens to be keeping you dependent financially, then he would do anything he could think of to keep you on the hook like that. Too, it would not matter to him if he was harming you in the long term, because you are expendable to him, like other folks around him. NPDs are "users of people," and would not hesitate to do all the things you fear have been done.
Best regards. If you are satisfied with the response, please hit "Accept." That is the only way I can receive credit for my answer. Thanks-