Jenna,

Ouch! Frankly, before I would do all this, I'd ask him to sit down and talk to you. Get HIM talking about her - ask him why he is asking her to call when you're not together and why he's been emailing her. Confront him with that and he's got to either a)explain who she is and why he's doing this - he actually may have a reasonable explanation in which case only your gut can tell you if he's up to no good or b)refuse to explain, in which case pack your bags.

Before you talk to him though, you need to think about how good this information is and who you heard it from. People don't always have the best motives in their hearts, so you need to decide whether or not you can give any credence to this information.

I really hope it's not what we think! Good luck.

Anna

some of it's magic
some of it's tragic
but i had a good life all the way......
~jimmy buffett