The person who treats your inconvenience as minor may be showing you whose comfort usually comes first.

How someone handles a cost that falls on you rather than on them is reliable information. A small delay, a changed plan, an extra journey: if these are always described as no big deal when they are yours, and never when they are theirs, you are watching a settled arrangement rather than a single moment. It still governs most of what gets decided.

Keep a private tally over a month of who absorbs the inconvenience. If it runs one way, say so plainly and specifically once, using an example rather than a judgment about character. How that lands will tell you the rest.