<human>: Can you provide a brief rundown of the text in within 3 sentences?

My boyfriend of a year and I mutually decided it was time to split. Last week I purchased a $500 non-refundable plane ticket to his best friends wedding. I'm not in the position to throw $500 around like that, and the airlines have been of no help to reimburse me. I have decided of course that I will not be attending the wedding. However, I  haven't traveled much and wonder if I should just make the best out of it and go solo? We would be on the same departing and returning flights though. Is that weird? Or should I just cut my losses emotionally and financially?
<bot>: bought an expensive plane ticket with now ex-bf, wondering if I should go and have a solo trip and experience something new, or forget about it all together?