Obviously you are right about his communication issues
I haven't followed Kaia that closely, so my only impression of Silver is from one TV interview I chanced upon, right after he and Kaia parted ways. It barely took a minute or so of listening to him though for me to think, "Wow, what a self-important douchebag!" It seemed like he thought he owned Kaia in some way and was somehow entitled to continue coaching her, that only he knew what was best for her and she was being foolish by leaving him. Obviously his ego couldn't accept being rejected like that, so he just had to go on breakfast TV to air some dirty laundry to soothe it.