Is this sentence alright?

Since I loved him enough to marry him, I worked ceaselessly for the next 15 years, hoping that he would some day clean up his act if I stuck by him and supported him.

Hi,

Firstly, I would like to know how the sentence reads for the natives.

Also, as to the underlined phrase, I am wondering if it's OK to omit the first "him".

Thanks in advance.