slmom...sorry to hear of your situation... I can relate to checking the cell phone bill...you know what I finally did to relieve me...I had him put it in his name...that way I couldn't... You really don't know why he is calling her...could be so she doesn't know he is at your place...or to reassure her he is being faithful to her...you just don't know for sure so why torture yourself...I did that and in the end it just made me more upset...
I have good news....H and I are back together...it took nearly 2 years....but I did it...hard work..