Guilt immediately overtook Bram. He regretted having been so stupid. Yes, he felt himself a fool for not being able to control himself. He gets angry easily, the feeling of not being loved by Clara in the past, made him never like seeing Clara close to any man, even if they just greeted each other. He was too afraid if Clara loved another man. He doesn't want Clara's heart to belong to another man, but he doesn't understand how to win Clara's heart, he doesn't understand how to make Clara fall in love with him.
What Bram feels is also not easy, living with Clara, the woman he loves without being loved by Clara makes his ego too big and reluctant to let Clara go. Whatever it is, whether Clara loves him or not, whether Clara is happy or not, for Bram, he only thinks about his ego so that Clara doesn't leave him, so that Clara stays by his side.
