My fiance enjoys masturbating more than sex

My fiance enjoy masturbation than sex,he told me himself. Have tried all means to put a stop to it but no way.
Even today he said to me that he find satisfaction in it than sex....
Please aunty Amara help me cos i love him so much,,,
Thank you

Dear sender,
You need to first understand what is going on in his life before seeking how to help him.
People do not wake up and start masturbating, there may be some psychological battles which may have driven him to masturbate.
It may be rejection from others, child abuse or pornographic addiction which he is unable to overcome.
What are the probable consequences of such addiction?
He will have limited time for you and would prefer the solitude of his addiction than the company of a lady.
He may have delayed ejaculation or no ejaculation because sex wont excite his hormones as a result of the side effect of masturbation.
Emotionally you will not bond with him and as a result wont enjoy your time with him.
Now how can you help him?
You need to discuss with him and find out what maybe the motivation behind masturbation.
What lead him into masturbation and how does he feel after masturbation.
If he enjoys masturbation as he said, then he may not be emotionally ready for marriage.
If he does not see masturbation as a negative challenge and a problem, there is little you can do to help him.
You will need all the patience, tolerance, understanding and wisdom to help him overcome the addiction.
But I would suggest you mellow down on marriage talks until this addiction is dealt with to avoid putting your marriage and yourself under undue pressure that could have been managed before getting married to him.