I AM DEVESTATED

My fiance of 3.5 yrs used to gamble alot at the casino. Almost a year and a half ago he voluntarily banned himself.
The other day I found some of his bank statements and saw that he withdrew large amounts of money, yet he doesn't have anything new to show for it. And kowing him very well I know he doesn't just take out 100's of dollars. It's out of character.
I called him up and asked him and he said he doesn't know why he took the money out. I find that hard to believe.. he was kind of ticked at me for lookign through his stuff, (even though he has told me I could because he has nothing too hide). He let me go because he was mad at me for accusing him of gambling.

Gambling seems to make sense however. Why else would he withdrawl large sums of money? UNLESS he lent it to his brother. That ticks me off as well. His brother also has a gambling problem but ublike my man, he continues to go to casino's. My bf already lent him $1500...and I told him he cannot lend him anymore. We are trying to save money for our wedding etc.

He is at work right now and I haven't heard from him. I told him to call me when he is ready to talk about this like an adult. I don't kow whats going to happen but I feel empty and hollowed out. I feel like it is the end for us. Because if he is gambling again he kows that is a deal breaker for me and I will have to end it. I am so unbelievably upset about this and I am at a loss about what to do