my wife is not interested in kissing me.just as she arrives at bed b

My wife is not interested in kissing me.Just as she arrives at bed be silent and sleeps. SHE does not stroke me. Though I.?
When I initiate making love on the bed at niggt, after sometime she turns the other side saying that she needs to sleep. However she seems to be enjoying with her mind ; I feel her legs a bit moving and jerking from time to time. As I approach to kiss her she pushes me away. When I discuss with her over this she prefers to be silent. She is now 46 yeaes old. We have one child. Even though she needed to have one more child I did not need due to economic constraints. I am not interested in having full intercourse. Instead I am used to coddle and caress and to satisfy her with my mouth. This is a very prolong story. Nevertgeless what is mentioned here is a titbit. How can I make stroke me caress me hold me hug me embrace me. Speak lovingly to me. I am used to doing so with her dislike. Can a woman at this age have fun or intercourse mentally unless the husband does not have sex with her. When she is horny/hot she sometimes does not let me kiss her. Is it sign that she is engaged with some one mentally. After my initial stroking and kissing she prefere to turn otherside if the bed and sleep. Yet I feel she is thinking doing something mentally utterly neglecting me. At this stage I keep leaning against her body from the back placing my leg on her leg enjoying at least heat of her body. As I stay I feel some sort of movement of her thighs and legs burning me inside owing to the feeling that keep doing some with someoneelse mentally. She seems enjoying so for a long time. P help.