The previous posters were spot on. You didn’t deal with the issues you had before the relationship, you just stopped focusing on them and took a break for awhile and now they are back. Deal with the root causes and you may be able to get things back on track. But regardless of whether you continue this relationship or not if you don’t deal with the depression and suicidal thoughts, they will come back in your next relationship.

Best of luck!
~Jodi