when my h first started to come home (after a d seeking 6+ month seperation) he had reactivated an old cell phone (a secondary one) it was not hidden from me but I did not like it because calls could be erased, while his other cell phone does not allow calls to be erased they must be bumped out by new calls...so anyway..I hated this second phone..saw no need for it..his justification for it was that the other didn't work everywhere so this was a backup..to me it screamed a phone to call ow with...I made my stink a few times about it but then just stopped as it seemed to do no good...then low and behold one evening on our way out the movies h says "i thought you'd like to see this" and flying out the window of the moving truck goes the cell phone...sure I'd rather have seen ow go flying out the window but the phone was nice.
what am I saying to you???
well she has this phone that she "may" be using to call om...if you make a stink about this phone more likely than not all you will have done is make a stink and nothing will change...it is not about this phone it is about her...that phone could be gone and you'd still find something to make you doubt what w is up to.
so decide if you want to mention the cell phone or not. at this point I would say not...stop snooping at how much she's using it too...it's not doing you any good.