Oh Jenny, I'm so sorry. I had hope he would get better. My heart cries out for you. I know Mark will be missed.
It does help crying and letting those emotions out but don't be too hard on yourself, it's nobody's fault. I also think getting another keet is the best thing. I know Mark will be happy. Please take care and we hope you still continue in the forum. We are all here for you.
Rest In Peace Mark