Should I suspect something?

brittani b Asked: Should I suspect something?

Ok, a little of my background first! In my past relationships I was a real control freak and had real bad trust issues! Over the years I have learned that if I show my man that I trust him then he is least likely to go off and cheat on me or lie to me! My current boyfriend has been like best friends with this girl since high school, really close like brother and sister, for the past six or seven years or so! He told me everything about her before we started dating and I have met her a few times! She knows that me and him are together and he will kiss me and hold me and everything in front of her! His birthday is this Sunday and hers will be Monday! She text him today and asked him if he wants to go out of town tomorrow and celebrate their birthday together and get a bite to eat! They will be gone from 8am until 12pm! (4 hours) After she text him, he asked me if it was ok that they went to get some food and I said ya that is fine! I feel kinda crazy about asking questions about my personal life on the internet, but i cant talk to anyone about this without being judged! I know that I can trust him, but I am not entirely sure about her! Any advice?