I just want to say. My therapist blurred boundaries just like this too. He would then overcompensate by going hard line on other boundaries which was very hurtful. I eventually left him and secretly hoped we would be friends. Then I went to another therapist and processed all the ways in which he had harmed me.
Then, lo and behold he contacted me out of the blue 19 months after termination, didn't even acknowledge the fact our previous relationship had been a professional one, and tried to initiate a friendship. I felt hurt, invaded and very angry. I felt he had been grooming me all the time I was in therapy with him. When he contacted me, he was still speaking to the vulnerable me, the one who loved him and was blinded by transference. What he didn't realise is that that version of me didn't exist any more. Good therapy had seen to that. These feelings change after therapy. He's not as wonderful as you think he is. If he was he wouldn't be putting your emotional wellbeing at risk by blurring boundaries.