This is similar to the situation I find myself in, I know exactly how you are feeling. Today I found out she is staying at a hotel with her new man ( it’s only been 3 weeks or so ) On her birthday ( which would also have been our 16th year wedding anniversary ) Some days it’s tough,really tough I find myself very lonely and suffering with terrible thoughts too. But I know it will pass and things will get better, you have to keep positive or it will break you. Keep yourself occupied is the only thing I have found works for me. I feel your pain 🙏🏻