Magic, It wouldn't hurt to accept his offer of coffee once in a while as long as you have no expectations and do not mind read the offer. It is an offer of just coffee, nothing more. I'm sure if it was a friend who offered you coffee, you would have accepted it once in a while...am I correct on this?
You do realize that there are no steadfast rules on what to do or not do. You have to try different things and if something isn't working, try something different. Also, what may work in on poster's situation, may not be the proper thing to do in your own. Again, there is no right or wrong way...you have to be willing to step outside the box and try different things.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
