LoL, yes.
most email accounts have a spam filter. you can just add her name/email address to it. if you want to just cut off the forwards getting sent to your blackberry go to www.tmobile.com and sign in. go over to the tmobile BIS area. click filter (of whichever email address she is using to contact you) and make up a name for the filter. set it to from sender and add her email address and choose ok. you have now filtered her email address from being forwarded to the handheld.