Herman our 16m old male dragon was very sad it seemed. He didn't do much ate and slept. So I figured he needed a friend so I found a female that is 11m old female. At first it was great "the first couple of days", but then he started to freak out jumping on her and grabbing her like a nip. He sometimes turns black but not all the time. He does bobb his head up and down at her. She doesnt seem scared. Is he going to hurt her? Should I sepperate them? Anything to worry about or is this just normal behavior?