[Skyline]

Hey there, I wouldn't say that you were wrong to text her best friend, and I really doubt that your girlfriend would want to breakup with you over that considering you've been together for four years. I don't see a problem with you texting her at all, as you said there was no flirting involved. Your girlfriend is probably just a more-than-average jealous person, and you'll both have to work with that. I think the bets thing is probably to let her blow her steam off and then become more calm and reasonable about the subject, and then being it up again.

Good luck!