Don't take it personally. It's just personal. And what I mean is that not everyone is going to "like" your facebook page. And there can be a number of reasons.
As someone who works with a number of clients in health and wellness, and that extends to therapists, psychologists, and social workers, many realize that despite what seems like everyone sharing a little to much information on social media, there are some things that are best kept private.
While this hasn't stopped anyone from having an online presence, designed for clients to better understand their services, make appointments, or check hours and insurance policies, it has stopped them from reaching out to far.
So what is to far? Perhaps it's a facebook page. Many therapists know that there is a confidentiality issue (as well as legal issues) and that their clients don't want to advertise that they are seeing a therapist. Or that their kids are having difficulties in school or in social situations. Or that they're on a diet. Or in a support group.
It's a fine line that needs to be watched. As someone who understands marketing, I tell my clients it's never a one size fits all. There are so many different channels out there, and ways to connect. Finding the one that works best for you, and your clients, is a matter of knowing that sometimes you don't want to be friends with the people whose care you are under. That it's about the relationship offline that really counts.