HiCustomer Thank you for asking your question on Just Answer. By the way, it would help me to know:
-What are your ages?
-How long have you been married?
-Does she call your husband alot or only when she needs him?
-Does your husband always tell you what they have talked about?
-Do you trust your husband?
-Does he tell all of his friend to call him like that?Thank you again for trusting me with your problem. Please reply as soon as possible so that I can finish answering your question.
If it is bothering your marriage then this is a major issues you and your husband have and need to work through it. He isn't showing you much respect if he doesn't put boundaries on how often she calls and where she calls him. You have to tell your husband that you don't appreciate her calling him at work and him not telling you what they've talked about and that if it were as innocent as he makes it out to be he should be able to share with you what they talk about without you having to question him about it. If you let this go it will only continue and possibly get worse. Even though they are both married there is a line that you do not cross as friends and that is making the spouses feel uneasy about what kind of relationship they have.
She should be able to go to her husband if she is married instead of relying so much on your husband and it is your right as his wife to tell him these things and tell him you just don't like the type of relationship they have. Tell him you can understand being her shoulder when she needs a friend but that is what a spouse is also and why can't she go to her husband? How does her husband feel about the relationship? If your husband is a great husband then he will totally understand your feelings and want to gradually change how often she calls. Even though he may just be a good friend also he is and has been crossing some martial boundaries that shouldn't be crossed as far as outside influences are concerned and he has to be told that isn't the way a marriage works.