Good evening and thank you for the opportunity to help in answering your question. Based on the detailed information you have kindly provided it sounds as though as of late the gentleman is experiencing a transition in his life. The typical impression would be a midlife crisis but this appears to be different.
Given that he has gradually transitioned your affair into a relationship which signifies demonstrating a couple of possibilities. The first that comes to mind is that he may be having difficulties with his wife which is prompting him to want a romantic relationship with you which he isn't getting at home. Given the nature of your relationship and the fact that it has lasted seven years, my impression is that a significant connection has certainly developed between the two of you.
Given the aforementioned connection it's not surprising that he would want more than just sex. What a lot of people aren't aware of is that purely sexual relationships often go through this type of transformation if the relationship is frequent and consistent. Feelings begin to develop and one of the individuals begins to want more than just sex...they want intimacy which is either lacking in their marital relationship or they have developed more personal feelings which is a natural progression.
My suggestion would be to sit down with him and ask him what has changed in both your relationship with him as well as with his relationship with his wife. My impression is that he has started to develop deep feelings for you which may very well be confusing him just as his behaviors are confusing you. It's critical to know what is driving his behaviors in order for you to determine where you stand in the relationship and the future holds.
Regardless of what he shares with you as the reason for his behavior it will likely serve to confuse you further, regardless of the reason given. My suggestion to you would be to consider seeing a therapist to help you explore further your own emotions that will undoubtedly begin to manifest. This should help with any confusion that arises and to help you further work toward what is you want from this relationship as well as what you want for your future.
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