Conflicted about staying with him

I recently discovered that my fiancé [32m], whom I've been with for 4 years, has been struggling with a gambling addiction. It came to light after he confessed we've lost a significant portion of our joint savings. I'm heartbroken and unsure if I can trust him again. He's seeking help now, but I'm torn between supporting him and protecting myself. Any advice? #SurvivorSupport #TrustIssues #GamblingAddiction