I think Boyle has cut his loses before he made anymore and called it quits, got out while still could and made it look good... i think this is the begining of the end tbh.... lets face it he probally didnt ask for anything for his shares in the club as there was nothing to give.
Call me daft, call me whatever but reading between the lines it kinda makes sense, hes poured money into the club and not really recieved much back, he has done well and done a lot for the club but what more can he do, he has his own personal as well as business interests to think about as well as that of his family.