Clients sometimes react negatively when their in-session problem behavior is simply blocked. This article illustrates how a FAP (Functional Analytic Psychotherapy) therapist can work effectively in session with a client's problem feeling of unlovability by: 1) understanding its antecedents and functions, 2) using therapeutic love to reinforce in-session improvement, and 3) discussing how to generalize improved ways of acting and associated positive feelings resulting from the therapeutic interaction to daily life. A verbatim transcript of an interaction between a therapist and client is provided, along with annotations of the client's clinically relevant behaviors (CRBs) and the therapist's use of FAP's five rules of therapeutic technique. When the client experienced the ways he really mattered to his therapist, he was freer to allow this sense of being cared about, rather than his feeling of unlovability, reinforce loving and caring by others.