<human>: Some background info-we're in a LDR and have lot of issues. We've been planning this trip for months down to buying our flights. We had a fight about the tickets and I told him we would talk in a few days because I was having doubts about our relationship and I needed alone time.

So a few days later I call him and we're working things out when he asks if I cancelled my plane ticket yet. I say no...why would I? To which he says oh well I invited C since I thought we were broken up so he's coming with us.

Now, I'm not sure I understand why he thought we broke up since I told him we would talk after I had space but I think that's my own fault. I don't hate C, in fact he's a pretty cool guy. However this trip was supposed to be the two of us. We hardly see each other as it is and it's happening before I spend 2 months abroad while he stays in the states, making our LDR even further/more difficult. 

I'm pretty sure C has already bought his ticket...but I'm really unwilling to share this experience with him to the point where I don't want to go at all. I would rather save the money and just fly out when my program begins but I know if I tell my SO this his reaction is going to be...less than favorable I think.

I'm talking to him about it later tonight, I would appreciate some pointers as to not come across as a selfish bitch. I think it's ok for me to be a little put off by my SO inviting C but I think it's going to come of to my boyfriend as an ultimatum.

Thoughts/help? Thanks!

Give me a shortened version of the text
<bot>: My LDR boyfriend mistakenly thought we broke up and so decided to invite his friend on what was supposed to be our trip overseas. I don't want the friend there but he's already bought his ticket. Help please.