lucky girl ji,
We can understand the pain you are going through.... Being a Sai devotee, I don't have to tell you about having FAITH and being PATIENT, which all SAI devotees know by now. But trying to follow this is the toughest part when drowned in such a situation. But don't loose hope on SAI, whatsoever happens. BABA is watching whatever is happening in your life, but that doesn't mean that he is not doing anything to save you. Karma is something that even Gods cannot escape from when taken a human form. BABA will definitely be with you and protect you. If you can, please do SAI VRAT for 9 thursdays. I hope you know about this vrat or you can get information from the internet itself. While doing the vrat leave all worries to BABA and have complete faith in HIM. Do not even talk or fight with you husband regarding this issue till the vrat is over. Even if you see him talking to that girl just ignore it and concentrate on BABA and tell HIM(BABA) that you have left everything in HIS hands wholeheartedly. My prayers for your problem to resolve soon.
OM SAIRAM
OM SAIRAM
OM SAIRAM
OM SAIRAM
OM SAIRAM
OM SAIRAM
OM SAIRAM
OM SAIRAM