"I have never in any way been a financial burden to you." Paul speaks of someone for whom one has to spend money as if they were heavy items that people have to carry. The full meaning of this can be made explicit. Alternate translation: "I have done all I can to make sure you do not have to spend money so that I can be with you" (See: [[rc://en/ta/man/translate/figs-explicit]] and [[rc://en/ta/man/translate/figs-metaphor]])