I have a girlfriend, Amy, who I’ve been with for 9 months. The girl who is mentioned in the title is Melissa my friend of 3 years. M is part of a group of 7 friends from college. 

About 4 months ago, Melissa and I planned a trip for our college friend group to go to Hawaii in May. Melissa was in charge of coordinating the trip with everyone else. She told me that she couldn’t get anyone to agree on dates or agree to the trip so it was just going to be the two of us. I asked about bringing Amy along but Melissa said that it would be a bad idea for me to plan a trip so far in the future with someone I had just started dating. This made sense so I decided not to invite Amy. At first, Amy was a little uncomfortable with some aspects of this trip (Melissa and I sharing a room) but was fine after I assured her that Melissa and I were just friends. 

Fast forward to Friday night. My college friends and I all go over to Melissa’s house to hang out and drink. Things are totally normal until around midnight after everyone else leaves and it’s just Melissa and me. Melissa started telling me about how excited she is for the Hawaii trip because it’s finally “our time” and that she’s been waiting for this for three years. I had no idea wtf she was talking about so I asked her to explain. She said she’s been in love with me since we first met and that she knows I feel the same way. Things clicked in my brain once she tried to kiss me. I told her that I wasn’t feeling well and left.  

Yesterday, I told Amy what happened and we had this conversation (not exact quotes obviously):

&gt; Amy: It sucks that you’ll have to cancel your Hawaii trip. Maybe we can go somewhere together that week instead. 

&gt; Me: Why would I cancel the Hawaii trip?

&gt; Amy: Because Melissa just admitted she’s in love with you and it would be inappropriate to go on a trip alone with her. 

&gt; Me: Look I would like to cancel the trip but, I’ve already paid a lot for this trip and some of it is non-refundable. It sucks that I’ll have to go with Melissa but if you trust me, you know that I would never allow for things to get inappropriate. 

&gt; Amy: I trust you and I don’t think you’d cheat but I still think it’s inappropriate to go on a trip alone with her.  

This went in for a while longer and Amy started to get mad and interrogate me about why it was so important for me to go on a trip with Melissa. By the end of the conversation, she said she was sure if she believed it was just about the money anymore. 

It honestly is just about the money. Ideally, I wouldn’t have to go with Melissa but I don’t see any other way out of this. I understand where Amy is coming from but I feel like she should trust me to be appropriate. WIBTA if I went on this trip anyway?