If you look at the art of love, it the one thing that ends up breaking it is lack of trust. Looking back to school and college times, I have seen many friends lose their rag with their partner where they have just not been able to trust their partners, especially if they are a popular character, or they end up cheating and therefore lose trust entirely.
It's almost unbelieveable to you to think why she would thin thsi I know- for you boys, the object of trust is vital, and women is mostly to care. But she has been given images of you, that all tend to point to one particular look. You should really sit her down and talk to her properly. And I don't mean sit her down for 5 minutes before you head off to do somethign else; you need to plan a time with her, take her somewhere quiet, and talk. Listen to what she has to say, and let he speak, and have her say. Once you get the full story of what she's heard and listen instead of criticise, perhaps you should then explain how much you care for her and that your here with her and noone else.
Unfortunately, whetehr your male of female, we all tend to get a lilttle paranoid about our partners. But think of it this way boi; if she didn't care about you, she wouldn't be worried.
Good luck,
kitty:)