No, is the general answer. Psychotherapists have stricter ethical guidelines than other professions. Though it may be puzzling, the reasons are for the client’s benefit. I link to an article on the reasoning below.
Though I cannot be friends with my current and past clients, I aim to be friendly to them. So if I see you in public outside of the office and appear distant, please do not take it personally. This is because I want to be of help to you in present and into the future.
I like the following article which includes the reasoning behind this ethical guideline.
