You didn't give us much to go on here. I thought it was odd, that you titled this "sex" but asked about love. Are you confused about them being different things or did you mean to ask why he isn't having sex with you as much as you think he should?
Please re-ask this with some more details, like for instance why exactly you think what you do.
What is he doing, or not doing that you are taking as a lack of love?
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