Diabetes is a treatable disease. I have been diabetic for almost 2 years. I don't know if you're male or female but as long as you eat properly and exercise as your doctor suggests, you can have a normal and active married life. Paramount to maintaining health is keeping the weight down and exercising.
Good luck and have a great life.
Any conic disease will effect your marriage.
Diabetes requires a change in eating
IF you do not control your BG you can have ED problems
Uncontrolled BG can lead to a lot of marital stress.
Diabetes is controllable.