I think this has little to do with being inappropriate, matters of (dis)taste, territoriality or philosophy.
You worry about some relatively unknown adult male being in your house alone with your wife. You worry about her being attacked or raped; you cannot protect her if you are not there. The post-visit lewd text messages sent by your wife’s male acquaintance bolster, in your view, your position that your wife acted unwisely in inviting him into your home while you were out.
Your wife probably believed she knew the man well enough to feel she was in control of the situation. The man may have thought that the only reason a married woman invites a man into her home when her husband is out is because she has a sexual interest in him. He made no overtures while in the home, thus avoiding being humiliated if she rejected him. (He distanced himself physically before making a play for her, which provided a psychological safety zone for his ego in case she rebuffed him.)
You overreacted to your wife’s acquaintance visiting when you were not present, she overestimated her ability to make it clear to the visitor that she had no sexual interest in him, he overestimated his sexual attractiveness to her.
Misunderstandings all around. Let the issue of the man’s visit drop. Two things need to addressed now:
- how your wife reacts to the man’s text messages. Was she surprised to receive the messages? Was she scared? Angry? Did she laugh it off? Has she communicated to him that his overtures are not welcome? Did she ask you to handle the situation?
- how you and your wife negotiate an agreement as to who can be in the house when only one of you is there. This is where respect for each other’s feelings is important. She needs to understand your desire to make sure she is safe inside the home. You need to make sure you don’t come across as thinking she’s too trusting to size up potential threats from other people.
If you both have cell phones, try this: when you have someone over when she is not there, call her as soon as the visitor arrives and let the visitor hear you tell your wife who is visiting, when they arrived and the reason for the visit. As soon as the visitor leaves, let your wife know. Your wife does the same when anyone comes to the house when you are not there.
Men and women are taught different ways to communicate and this leads to many misunderstandings and much frustration between men and women. Although the book is widely ridiculed (by people who have never read it, it seems), Men are from Mars, Women are from Venus by John Gray is a good basic explanation and how-to manual for improving male-female communication.
I also recommend The Gift of fear by Gavin de Becker. It explains how to recognize that gut feeling we all get when we meet someone who wants to manipulate or vicitimize us.
Best wishes for a mutually acceptable resolution to your philosophical differences.