It sounds like your girlfriend has trust issues. Going through a divorce is hard, no matter what the reasons are. I would like to know more about the history of your relationship. Has she ever been distrustful of you before? Did her soon-to-be ex cheat on her? Does she have abandonment issues of other kinds. You say you are serious, and after a year and half, the trust should be there.
You shouldn''t let her lack of trust and/or jealousy dictate what you do online. Many old classmates reconnect through FB and other social media sites. Most of the time it''s a great way to catch up and stay in touch with each other''s lives. However, I have seen a lot of people rekindle high school romances and end of divorcing or leaving their current partner.
You need to have a serious talk with your girlfriend and decide together where this relationship is headed. I also suggest couples counseling to help get back on track.
I also have a radio show in Nashville called "Ask Rhonda Live" 5:00-5:30 pm CST on Mondays. You can always call in and talk about your situation. The studio line is 615-256-1360. www.WNAH.com.
You can reach me online at www.PrestoExperts.com/Rhonda-Bennett. There are many ways to resolve this situation and figure out if you want to save this relationship or not.
Rhonda Bennett, M.A.