Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: Mobile so sorry for style

Am I the asshole for purchasing an engagement ring for my girlfriend of 6 years from a former fuck buddy?

So I recently bought an engagement ring for my current girlfriend (future fiancé?) from a former person I used to hook up with. It was never serious and shortly after me, she met her future husband and got married and had multiple kids. I went through her because my buddy got a sizable discount, which later I got the same. So am I the asshole?

buying an engagement ring for my girlfriend from a former fuck buddy because of a discount