Should I go on vacation with my ex?

We've had this trip booked for 3 months and we broke up at the beginning of this month. Breakup was mutual as we discussed we aren't compatible at this point in time given both our careers. We both love each other a lot and want to go. We're aware that the trip could make things worse between us, but I feel like I will regret not going as this is a bucket list trip and we've both spent a lot of money on it. Trip is next Friday for 10 days. I'm afraid my parents and friends will be disappointed in me if I go.