It is absolutely possible to marry someone who is on insulin. The fact that he has been taking insulin since childhood suggests he likely has Type 1
diabetes, a condition where the body cannot produce insulin. Taking insulin multiple times daily is standard and helps manage blood
sugar effectively.
His insulin needs may vary over time based on factors like body weight, diet, activity level, and stress—not necessarily due to the body “wearing out.” With proper medical care, a healthy lifestyle, and regular follow-up, people with Type 1 diabetes can lead long, fulfilling lives, including marriage and family.
This is not a dangerous issue as long as his diabetes is well managed. Rather than focusing on the illness, consider how well he takes care of his health, as that’s what truly matters in a long-term relationship.