I think whether there is love in therapy depends on the two people in the room and the issues of the client.
I have been with my T. on and off for 5 years and steady since last April. In the first 4 years, I came in for problem solving. How to help my kids, deal with parents, friends, etc. I didn't think anything about my T., didn't want anything from her and would have laughed if she said she loved me. I may not have come back. I never cared to see what she drove, wondered what she was doing or who she was with. Just. Didn't. Care.

THen, last April my mom got sick. I had just seen my T. the fall before and, again, no feelings whatsoever. Didn't miss her, didn't wonder about appointments, no notes, nothing. In May in the middle of my mom's sickness, she texted me "I always have time...I'm here". That was the first time in my life that some one had said they are here for me, that they have time. This was the beginning of my maternal transference which was positive but mostly negative for many months.
I needed to hear her say she cared about me. I couldn't tell her all my feelings with the same relationship we had had. It felt weird for me to all of a sudden have feelings for her when all these years I could have cared less. I needed her to say that by sharing my feelings she wouldn't abandon me, push me away, etc. It took several months but she said them months after I asked for it. For the first time in our relationship, several months ago I actually felt I loved her and knew I loved her - scary when my mind and my heart were in sync since I had fought it. I told her and she asked why it was so hard for me to say. I told her I didn't need to hear it - I knew from the look in her eyes when she said she cared. She nodded and said it can be shown through actions too.
So, I didn't need love in therapy for problem solving but I need it now while going through the depth of my childhood emotional neglect and the issues with my mom. My mom passing has totally changed our relationship. I think it all depends on the issues you are struggling with.