Why did she move away from her husband?

Why did she move away from her husband?
she goes to watch him when he performs at his hometown.
this time I went with her and I noticed something really weird.he was fighting his opponent this time with bare hands as per stipulation and he came down to the barrier where we were standing to take out some weapons.the moment he came closer to me and his wife,his wife quickly moved back,away from him though no one did,as if he was coming towards her and as he left she came back beside me.she clapped though and later the hubby kissed her but it was so weird.
she showed as if she's scared of him,then shared a kiss in the crowds,what the hell?

as you said that she's afraid of him but she spends most of her time with her dozen girlfriends getting photographed in weird postures not even looking after her 3 year old kid.