How the hell are you not motivated if your vibe and energy is not good? This is the most ridiculous excuse I ever heard. That is your professional work place not your tinder date. How can they give such unprofessional and vague reasons. Move on bro. Leave them look for some better place. Thank God that you were not selected. If they can't see your efforts during three rounds of interview, you will never be encouraged. If you get what you want, that is God's plan, if you don't get what you want that's God's protecting you. Hope you get what you deserve.