I think the only way to get better is to find such fulfilling relationships in 'real' life and not having T be the focus of all this longing and desires.

Talking about it can only help so much because the longing will still be here... the void and lack of such fulfilling relationships will still be present. Unless you find that for yourself, it will be difficult to just 'get over it'.

It is worrying that she is giving you tidbits that are making you feel special (yet craving more) when this boundaried relationship can only go so far.