While still being married may mean not much to you, it may mean something to him. After all I have gone through I wouldn't want to be involved with someone who is just seperated.
If you would like more to come of your knowing one another, it would be best to tell him. However as I staed, 10 times isn't such a long time if being together. Perhaps he doesn't feel like this might be going somewhere yet, to introduce you to family and friends. You could certainly ask him.
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory