I'm going to call my friend waluigi
what's your motive for calling your friend waluigi?
Because Bowser told me to do it and he's part of the Mario universe, so I assume that my friend is too.
It's okay to be very friendly with your buddies, and there is no harm in calling them as a game character. But Lord Bowser isn't real, so he is not able to hear you. If you genuinely think he's real, you need to talk to a therapist.
You're right, and I already went and spoke to a therapist today. It went great.
I'm glad you're already seeing someone. I would recommend you continue to speak with them, this will help with the Bowser situation.