OP, Your actions indicate you would really benefit from counseling. You are likely at least middled aged yet are acting like a early 20 soimething in your romantic relationships. This is likely to get you into legal and financial trouble in the future. There are many men in the US looking for lasting relationships that do not have the baggage of your ex. You would be better off joining the older singles group at your place of worship, volunteer in the community, take continuing ed courses, ... to meet people. You have already learned the hard way that it is better to be single than married to the wrong person. You are being used for an immigration benefit. You would be foolish to visit him again.