<human>: Summarize the given text in a few sentences.

So in May i started to lose weight mostly for myself but in part for my SO because I wanted him to find me more attractive and i knew that if i found myself more attractive my confidence would rub off. 
I lost 21.5 pounds and then my SO cheated on me. Now I feel incredibly insecure and reverting back to my old ways of emotional eating because I feel so sad and lonely.
I dont want this to screw up my goals, I want to lose 10 more pounds but have fallen off the bandwagon. How do I get back on?
<bot>: i lost 21.5 pounds then my SO cheated on me. now im emotional eating and feeling insecure. advise me please