You don't know the whole story. Stay out of it. Tell your girlfriend to talk to a lawyer. Maybe she can put them under a bond of some type. The summer is just now getting hot, wait till it hits 100 or so and see how tempers fkare. You dont want this summer to ruin the rest of your young life, especially over a woman. If it was a dog it would be a different story.
Keep your powder dry and arms length from the flame, carry on.