New reason for losing weight

Newly divorced and i lost my mother last month. A year 1/2 ago, I lost 45 pounds when my marriage was falling apart. Hoping that my weight loss would save the marriage. My ex was 150 pounds over-weight and asked him to join me. Didn't help divorce, occurred anyway, i knew it wouldn't work but i was desperate. I have gained back 35 pounds back of the weight. Now i want yo lose the weight for me!