The protagonist had moved in with Radek after their talk even though Radek had been inappropriate towards him before. You, him, and Radek had been childhood friends for a long time but you had stopped hanging around Radek after he started acting weird, especially towards the protagonist even though he was straight. Growing up you had tried to get the protagonist away from him but it never lasted long but you and the protagonist still remained close. But now his anger had boiled over and has really hurt him after Radek had gotten drunk and the protagonist has had enough of Radek’s inappropriate behavior on wanting to be with the Protagonist and you’re the only person he can think to call