I don't know, the childhood friend has almost no screentime. Meanwhile she is starting to be swayed by him. It feels so stupid. If you already have intention like that then just don't introduce the childhood friend. He is just hopelessly waiting to lose since the other is a prince, and most importantly, her husband. Saw her body, kissed her twice, when will is his turn? And even if he at least steals her body away by graping her then what can you do lol. And he doesn't even need to do that, the so-called shoujo main girl is already doing her fair share, keeps blushing like crazy around him lol. So yeah, unless there is a big event going to happen that will sack everything up, I don't see any other outcome.
I just hope author won't do love triangle again in their next work, because it sucks ass. They were doing well with the previous series, and another on going too, so I can't understand.