I've been hanging out with this girl for about the past month. We haven't actually hung out more than once every 2 weeks due to our busy lifestyles but we would text back and forth about twice a week for the last couple of months. When we would get together, we would go to a coffee shop and just talk. Yesterday, we went to this coffee house and I planned to pop the question and ask her out today. I got input from all my female friends and they told me to definitely go for it before it was too late. So everything was going fine and I overheard her say my name on the phone to one of her girl friends on the telephone (very good sign). A couple of hours later a guy came in, gave her a huge kiss on the cheek, and told her that he had to tell her something. They walked away for a second and came back and he had his arm around her and when he left, she awkwardly told me "that was my boyfriend. I never mentioned him because I barely see him. We've been together for 8 months now and we're engaged." So whats going on? After knowing her for so long, she never once alluded/mentioned him like she did her exes. What is going on?