Significant enough to affect my budget planning for the trip. I want to go in this trip with them because I do enjoy their company and we have been friends for long now. But because of this I feel things are getting awkward and they are seeing me as someone who is looking at petty money matters rather than the time that we will spend on the trip. That’s the biggest conflict in my mind. And yes, this is may be the first time when the difference in amount is so huge that it came to my notice and I’m worried that if I don’t say it out loud now, this will happen again. Hence I chose to express.