Xavier seethed in anger as he went on his way, Bianca was an asset o him, a friend he could trust and rely upon, she was the only one who understood him and stood by him since his childhood, Sylvia was just an innocent girl who lost everything she had just to keep her pack safe, all he felt towards her was respect and pity he couldn't understand why Bianca saw the fir as a threat and went as far as framing them for what they didn't do hence he resolved to teach her a lesson.
He regretted what he said to her about them breaking off their relationship, he knew deep within him that he didn't mean and will never mean such but she had crossed the line and he had to put her back in her place, after few weeks he would reach out to her because by then she would have come back to her senses and be sober.