Can I please move to a safer planet?

Oh dear. Here we go again, I'm afraid. If you are heavily emotionally invested in the Doctor/Rose ship, to the point that you get angry at the mere idea that there might be something not quite healthy about it, you might want to turn back now, ( because I've just seen "Father's Day"... )

Before I go any further, however, I want to establish that (  I am not, and never have been, opposed to the possibility of the Doctor falling in love with a companion. )

However, I reserve the right to call things as I see 'em, and right now... ( I'm more than a little worried about the Doctor's mental health. And here's why: [SPOILERS] )