lostcherub

Today my two sisters found out about what my hubby done and they were there for me and supportive and stuff but obviously they wanted to know why I had not told them sooner and gone through it on my own. I couldn't answer is it because i'm ashamed that it is my marriage that has a problem or is that I don't want people to think bad of him? Is that silly to say the latter after what he done to me?
Some things they said though got me thinking again one sister said he can't just say he got carried away because he had to put thought into his answers and questions/remarks and he had to pay attention to what she was saying to him so he was answering properly, this has made me feel bad about it all over again but it is such a true statement, i'm not condoning or wishing for a minute, but if he had picked up a girl and had a quickie it would have been just that with not so much thought going into answers and also not the timescale he had the conversation with my friend.
I'm worried now about how my sisters will act with him and what if I decide to work it out with my hubby how will things be then? Has anyone else been through this part of it before and how did you deal with it? Should I ask my sisters not to say anything to him but just to be there for me or do they need to vent a bit at him or my friend for what they have done to their sister?
Oh its so confusing and hard to please everyone and I don't know why but why do I not want people to look at my hubby in a bad light does this make me strange? Thanks for reading i'm sorry if its quite gobbledy gook and doesn't make a lot of sense