are you going to be there when she goes big again, you should be then you will get a better understanding of why its so exciting and addictive for her. She will say things to him that she has never said to you, her pussy will make noises like your never heard it make as she fucks him. She will beg him for more, she will allow him privileges she refuses you, he will fuck her in positions you can not, she will display passion you never knew she had, she will ignore your presents and tell him she loves him