There's a weird girl who works with my husband?

She started there 2 months ago and straight away my husband was uncomfortable around her. She seemed to like him as when the staff were all together after work she would follow him round and constantly try to make him laugh...now I trust my husband implicitly....he would nevr be unfaitull plus I have a good friend at his work and she has told me that this girl is odd and unfriendly towards all the women at work....my husband started to avoid the weird girl and found that she was always getting under his feet...shed appear wherever he was...the other day my husband noticed that there was some money missing from his wallet when he got back from work and couldnt think what had happened to it....and then yesterday he went into the room where bags are kept and SHE was there....his bag had been tampered with and she was busy doing nothing...sort of nervously fiddling with the ice machine. Now...f she has a bad crush on him...why is she stealing from him? My husband has informed his manager