Yes, and in any relationship (whether romantic or otherwise), it's best you find out sooner rather than later whether or not someone can handle difficult conversations. Because eventually you will have to deal with some extremely hard things together. If you can't easily navigate the smaller upsets, how can you possibly get through things like health problems (physical and/or mental), money problems, or dealing with berievement. There comes a point where "I don't want to talk about it" is not a helpful response.