Guild members in my pvp choices

What you were expecting to happen, and what actually happened?
Not to see a guild member in pvp choices
What are the steps to make it happen again?

Do you have any screenshots or video you want to share with us so we can see the problem? Attach them to your post!

This has most likely happen because you were still new to the guild (15 hrs in your screenshots) and because Geran is listed as Rival/ Revenge battle. The game will have pulled him from either your Rival list or revenge list for you to fight.