Lust? Fantastic, enjoy it. Love, no.
I am sure you know the old saying "You don't pay a hooker for sex, you pay her to leave." I don't deny he feels something; he does. But he also has a job, friends, family and others to whom he is NEVER going to introduce you. He will never tell them about you.
In that microcosm world you share, ie a hotel room, the two of you are free souls unencumbered by reality. In the real world, filled with peers, neighbors and elderly relatives with weak hearts, he is not going to introduce you as his little career girl.
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How would that go anyway? Would you come home and tell him about a tough day? ("Honey, I developed tennis elbow and a torn rotator cuff, but I got the job done?")
Would he brag to his friends about you? (I am so proud of her. Her pimp, Tercel, says with some work on her oral skills pleasuring other men, she could be his main @#$%#).
No, princess, no pony, no castle, just lust