May be she feels secured when you are around her. The other reason could be trying to protect you.
at her home and what the u want from her
Sure! There are guys that make plenty of money so their wives can have babies and stay home to raise them. Then, there are plenty of guys who, unfortunately, want to dominate their wives and keep them pregnant and powerless.
Ignore him and keep sleeping with his wife.
so she will want to keep having sex with him
David want to tell Uriah about his wife that she is pregnant.
The men gathered there are suitors and they want to marry Penelope, Odysseus' wife.
ANSWER: One thing and one thing only, when your wife is home make time to talk to her, approach her with the question that you want her to answer. Then if you think you loosing your nerve, just ask her what's going on with her. Do not keep your mouth shut and set it aside, or else it might go on this direction where most married end up in divorce. Good luck!
none him and his 1st wife lived in his home town till she left him
<
I don't see that as being a very productive thing at all, maybe you should think about why you want to make her jealous and what it would actually accomplish. Answer If you want to keep your marriage for a long time, stop playing games and keep everything you say and do real. Trust is a basis for relationships and you don't want to violate that on a whim.
If you share a communal home with him you can't prevent him from entering. You and your wife need to move out and get your own apartment. If your wife invites him in your home there is really nothing you can do about it since you both have equal rights in the home. You would need a court order to keep him out. Perhaps you should consider leaving that relationship.
Then the husband should move out.