I did what MrBond suggested. I didn't lie or trick, just shared the positive things in my life.
After a while I quit though. I noticed how her FB pace followed mine. If I was active, she would be really active and vice versa. So, I took my FB'ing to an absolute minimum. I wanted to truly GAL instead of concentrating on FBGAL.
If you want, try it out. You can always stop if it becomes a race or consumes too much time.
Together for 8,5 years. S2 Interest in OM. She left 29.09.12 b/c we couldn't work things out. No signs of OM, not digging. Living in seperate homes, sharing custody.