The way the whisper works in game is really bad.
When you whisper to someone, you don’t see your text although the other person does see it. This makes it seem like your text isn’t sent which is very confusing.
I had to open a lobby and invite the person to make sure we got each others messages.
Also in the lobby, when he wrote something and then I responded, my text just got placed right underneath his without adding my name above it. So it seems like my text is still the other person’s text.