Here's my take.
You are not scared of him or miserable because you compare yourself to him and he seems to you more impressiive. You can compare yourself to many other impressive people and that doesn't scare you nor make you miserable, right? The fear is there because you think she does what you do, compare you to him and find him more impressive.
If it'd ever entered her mind to do this, she had already done it and had decided you're the one for her.
She probably mentions him in front of you because in her mind, he's just not thought of as a possible contender to you. She mentions him like she would talk to you about any other of her (neutral/girl) friends.
One day, when you are ready, you might mention this 'perceived' threat to her and you two can have a good laugh together. 
[This message has been edited by Hel (edited May 08, 2002).]
