Yes! It's always okay to call T again (unless they said not to). I did mine after 9 years. Therapy worked much better for me the second time around because both T and I had grown. I still remember the sound of T's voice when she realized it was me, the warmth and then she said something I noted but didn't quite understand at the time, that maybe we could work out some of the unresolved stuff between us (only, she didn't say "stuff" :-)