My advice for him (not you Sage) follows:
Relax, let her be. Be strong and happy with your life, with or without her. Be content that you have value, that she has been lucky to be with you. You've chased her enough; time for her to chase you. Calmly accept that she might not.
If that sounds too womanish, here's a real man's version: all you really need to know about life can be found in Star Wars. Princess Leia: "The more you tighten your grip Tarkin, the more star systems will slip through your fingers." Same with someone who is pulling away from you.