It's a little of both, I would say. Yes, the person is extremely shy. The person is so shy that it almost causes him or her physical and/or psychological pain to socially interact with others.first, in the expression 'pianfully shy' what does painfully exactly mean? does it mean very or does it mean in an unpleasant way or both of them together?
Probably a little of both. If you want something desperately, you want it in a manner characterized by despair, which suggests hopelessness. You want it so badly and have such little hope of obtaining it that you may well be prepared to do something violent or reckless to get it; you want it with a sense of extreme urgency.in the expression 'she desperately wanted solitude' does desperately means hopelessly, in a hopeless way she was seeking solitude or does it mean very and intensely? or just like the above sentence it means the both mixed together?
Hope this helps.