This, too--ex-marriage counselor said at one point how therapy can be very seductive because of this. It's someone listening to you and caring about you. Current T has said something similar, in how it's common for clients to have romantic feelings for their therapists because of the intimate nature of therapy. It's two people sitting in a room together, one sharing their deepest thoughts and feelings while the other listens intently and expresses care. Which isn't so far from what romance can be, except with that, you also have to worry about the other person's thoughts and feelings, where that's much less the case with a T.