Who is in the wrong here?

I need some help,

Is it fair to tell someone that their own actions are the cause of their suffering ? 

Not in sense of doing things wrong, and getting punished for it. more like going to a therapist and getting diagnosed with depression, just because of the way you behave ?? 

My father has never been the happiest man alive with me, (I think) or I just can’t read his mimic, nonetheless he hates being called out for certain things. and those, to him, are things that could ruin his social image. and what makes you look worse than your own child getting sent to a psyche ward?

Here’s the story, my father, 49, a hardworking man and family father of 6, had told me that he has been called out by the local doctors, and was asked why I was sent to a psyche ward. I still don’t know if the doctor is allowed to ask of such personal questions without proper reasoning, but that aside, he asked him that, which I think embarrassed him? mostly because he wasn’t so happy about it to me.. 

just now, mind you, I just woke up from a nap it’s 1am at current time, I went downstairs to get a cup of water. nothing too special when I saw my parents still awake at this hour (they usually are for some reason or another) out of the blue, my father asks me what I tell the therapist at therapy. I knew what he was going up to, he always picks up this topic, whenever he gets the chance to talk to me. I can’t stand it. I haven’t said anything, and I continued to stay quiet, because I do not like talking to my parents about my mental health for obvious reasons. He didn’t really accept that, instead, he continued on saying “if you keep acting sad and tired all the time with that pitiful expression they might think you have depression” (I have a default frown whenever I don’t do anything, which might have been the cause of his irritation??) keep in mind, I am already diagnosed with depression and PTSD, which he btw also couldn’t understand if I’m not wrong. he continued to mocked me during my previous therapy session, (where I was really uncomfortable with him in room because he kept telling me to talk and stop acting this way or telling the therapist that nothing was wrong with me at all that we have been forced to do this etc) quote on quote ordering me to tell the therapist that I’m fine, and I don’t need help, with the explanation, that id free myself from them if I do. little does he know, I want the help. he’s a troubled man himself, he has many struggles, and we’re in a critical situation right now. I understand how easily he is intrigued by small things, he’s really sick too to add to the book. I can’t help but feel a little selfish whenever speaking against him, so I let it be and try to change the topic 

My question is, if his actions and words are justified or not. 

Thank you.