I can clearly see your anger towards your husband and his colleagues too. It seems you are not able to calm yourself down and you are finding it difficult to overcome your emotions of anger and hatred. Here you need to take a moment and think how close you are in general to your husband. Sometimes problems relating to trust and fidelity are a manifestation of underlying lack of intimacy. During intimate periods in relationships, which obviously keep on fluctuating during the course of relationships, trust automatically builds and there are feelings of security and emotional warmth. However, when this emotional bond loosens, feelings of mistrust, infidelity and betrayal keep accumulating and we lose hold of our needs in relationships. Therefore, I suggest that you focus on becoming more closer to your husband and remove the psychological distance through developing intimacy. This will help you to keep yourself at peace in the relationship and both of you happier. I mean to say that your suspicion and mistrust may be an exaggerated feeling due to unresolved intimacy issues between you two. If you work on your relationship, you will become less angry and lose hatred. In any relationship, it is never possible to know what the other thinks or believes or does, specially when two of you are staying away for most of the time. Its only the closeness that binds couples together.

Yes,  it is difficult to accept and trust your husband after those issues. I think,  from Your description,  you wanted to work the relationship and recreate trust in your relationship.

Hello..... See talking with people  in work place is natural and sometimes ineviatable..  It depends  on your husbands behavior..  If he is genuine person then you have no reason to worry...  Try  to understand  your husband,  once you get  to know  about  him  you don't  have this problem..