hi sharpyusa and welcome.
Firstly to answer the question you most want answered – yes, there is light at the end of the tunnel.
Check out the My journal Forum, you will see a lot of stories similar to your own. You will also see the success stories – what things are helping others that you could apply to your own situation?
Don’t try and do it on your own, there is a lot of support avaialble these days. This site and others, places like Gamblers Anonymous, counselling and more. Things you can do like, restricting access to gambling funds, exclusion from gambling establishments and online blockers.
There are no guarantees what is going to happen with your relationship but the actions that will help you stop gambling are rthe same actions that might help rebuild trust. However your current relationship turns out you need to be stopping gambling for YOu, then you will be in a better position for whatever relationships are in the future.
Keep posting but I would recommend copying your story to the My Journal Forum; it’s a busier forum and you will get more feedback there.