I'm glad you talked to your t about what happened last time you were seeing him. I don't think it matters how long it's been - it sounds like something you needed to sort out with him before you could progress any further. I have to agree that him forgetting something you talked about a lot in the last session is not a good thing. My t says she has a bad memory but she only forgets the unimportant things - like that I have a cat for example (which I rarely mention) - she has never forgotten my family history or any memories I've shared with her. It might be something to keep an eye on to see if this is a regular occurance. I hope it works out for you!