Alex Rodriguez is reportedly "shocked" by his ex-fiancée Jennifer Lopez's supposed "reunion" with Ben Affleck.The 45 year old and Jennifer, 51, announced they had split after four years together last month, saying they feel they are "better as friends". But baseball player Alex is said to be just as shocked as fans of the Jenny From The Block singer, who has been seen spending time with her 48 year old ex Ben, who she split from 17 years ago.