after reading the updates, i think you should:
1) go to the police about the scratches (but not the threats)
2) chill out, forget your ex, let her do whatever she wants
i think that when you let her believe whatever she wants, and not push on her with some facts that she might not trust, etc, she will automatically become more inclined to believe you.
3) time will do its job, Seth will not last, i think. THAT'S when you go and beat his pathetic ass.
just my 2 cents
1) go to the police about the scratches (but not the threats)
2) chill out, forget your ex, let her do whatever she wants
i think that when you let her believe whatever she wants, and not push on her with some facts that she might not trust, etc, she will automatically become more inclined to believe you.
3) time will do its job, Seth will not last, i think. THAT'S when you go and beat his pathetic ass.
just my 2 cents