I told my friend that I want to go to Japan as soon as possible, and she suggested we go together because she's also wanted to go for a long time. 

The problem is that I never want to go with her (on any trip FYI). She just kind of invited herself into my plans. 

She has difficulty holding down a job, so she barely has the ability to save money. She also can be tiring to be around sometimes because she's quite judgmental. 

I want to go to Japan (and stay around 3-4 weeks) next fall and I invited my best friend to go with me, and I'm not sure if it's bad that I made plans with my best friend and decided not to include my other friend. 