I have found a man but I can't quit prostitution

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I met this guy through a friend who had asked me to accompany him to a party. I am 28, have a BA in Economics and the first born. I work at night in town entertaining men to earn a living because I have not found a good job for the last four years. The guy I met does not know what I do but his best friend who invited me over is my regular client. This guy has fallen in love with me and I think I like him a lot but I don't know how it will be if he found out about my night job. I need a man to marry me and support me so if he does that I will leave this job. Should I tell him about it? He believes I work as a cashier in a Casino. {Ndunge}