if this upsets you then he should definately not be doing it. i wouldnt feel upset if my dp was doing this, he might stop bothering me for sex constantly, and i do mean constantly.
would it help him stop or bother you less if you knew the reality of chatline workers? yes they are real live people but what they are saying is a load of bollocks.
try googling phone sex operator or look on adultstaffing.com and you will see what i mean.
i used to work on one these when i first left home as with no qualifications above gcse's i found it very hard to find a job that would pay the rent.
i told the people that phoned that i was a size eight, very busty natural blonde pole dancer and oart time model, who liked to have sex strangers. i was usually wearing some kind of lingerie or v short dress/skirt. and i was always at home having just got out of the shower or was laying on my bed.
the truth was i was in a v small office surrounded by loads of other woman, size 12/14 but still v busty brunette who couldnt pole dance to save her life and had never modelled in her life either. and as for the sex i a long term boyfriend who i would never dream of cheating on.
your dp may think that he is talking to v horny bored housewife who is wearing whatever and loves sex when the reality is he is probably talking to an overweight middle aged woman who is either in an a dingy office somewhere or sat at home with a fag in one hand the phone in her other, flannel dressing gown and slippers having a good laugh at whoever phones with her hubby!!!
it certainly wont be anyone you need to be jelouse of and they would never ever meet him as they would be sacked immmediately as all calls are monitored by supervisors.