Should I be alarmed? Every since my husband and my girlfriend went out to lunch for pass time while I was in surgery, they have been talking on the phone everyday.

Hmm, let's see, your husband has a history of cheating in the past and you're still checking his phone. Big red flag. Depending on what you've told your girlfriend, she might not be totally aware of his past behavior, but you are, and you have a natural right to be suspicious. Her intentions might be good but his might not, and with you being temporarily out of commission, he might be growing restless. Do you have a trusted third party who could possibly set up a sting operation for you, you know, send a suggestive text and see if he takes the bait? If that's possible, then you could have a much better idea of what you're dealing with here.

Girlfriend do you really think is nothing going on WAKE THE F UP,then again how long have you guys been married,is it worth the agravasion still after so many times busted , i am a man and once a cheat we will do it again cause we already got away with it so why not do it again he will believe me! so ome of have respect for our mates but some of us i dont know,IS A LOT OF TEMPTATION OUT THERE but we have to stay true to our relashionship.do you got kids,how long ,property,cars ?
analize the situation and your friend is not a friend beware!good luck and take your time analizing

Yes, My friends know of my husbands pass cheating habits. She and I have been friends for 25 years. Since her husband has died about 2 1/2 years ago she has been sleeping around. I tried repeatively to explain that is was not her that I didn't trust, that it was my husband. He has said many things to me months ago that lead me to believe that he had a crush on my friend. I trried to keep them away from each other because my husband is a known trouble maker. But once I saw her anger and also she began trusting him more that me, I knew that her feeling were involved. My husband and I have 2 boys 13 and 14 years old. I have finally left him on 10/20/2009 after a 16 year relationship and a 13 year marriage. He has cheated on me every year on our marriage. This is the last straw! besides after going on line and checkin his call log, he and my girlfriend are still talking on the phone 3-6 times a aday. This hurts but I must move on!

Yeah she's lying and he's cheating let this sink in and move on. no matter what happens you can only do better with new friends and a better companion

I love everything about this answer! Thank you!