Another freelancer and I started this project in January, but going into it, things are difficult. I felt the other freelancer would undermine my decisions when it came to tech and estimates.
For example, I estimated X amount of hours, and he would say things such as "I can do that in a few minutes", or he has a strong bias against the technology I choose.
My instinct tells me that he's trying to cut down the span of the project so he can move on (as he is working part time), but that would leave me with the burden of the work to do by myself. How do I respond to this?