She was saying I love you to another person now she's around you using you to get over that person. She was engaged he took the ring back this was the story you told it made you sad. The day she kissed him he did not feel right or know how to feel since she talk about them keeping it casual but later saying they could not date or be a couple. Her mind with many ideas that made her indecisive made he jump to conclusions without consideration for his thoughts and feelings. She would do whatever and use anyone so she could feel better about herself. He didn't see the worse in her but he didn't expect her to be at her best.
He was confused about this fling she would come on to him talking seductive. He was respectful because he knew once *** was involved it would make things complicated. He was open with her while she played games using ****** favors as manipulation. Things were not clear but once it got too deep things would eventually become awkward a close friendship with mild ****** benefits would become nothing two trouble with relationship issues would become complete strangers once again.