Feeling alone

I have this wonderful man in my life. He is sweet and treats me like a princess when we met he told me he has a gambling problem. He has signed himself out of casinos in Ontario for a year which to me shows he is serious about wanting to stop. The issue is he has found an online gambling site. He never bets much. Like 20 bucks here and there. I care alot about him and help him as much as I can.Today I broke down in front of him as I don't want this to ruin what we have. I know addiction is a serious thing and can cause problems in the relationship. I don't want it to get to the point of fighting over it and it ruining what we hve I haven't been this happy in years. I just don't know what to do