history: I feel so guilty, I promised my friend I would come to her birthday party but forgot about it. I feel so guilty_comma_ I promised my friend I would come to her birthday party but forgot about it Oh no! Maybe you can get her a gift and some sweets to make up for it?
current: You are brilliant! I can't believe I did not think of that, I will definitely get her some sweets to make it up to her 
next: Hopefully she will understand!