I think you need to have a discussion with your therapist on why your encounters with people are so transactional and why you either are unaware of your own feelings toward others or whether you are simply incapable of having real feelings toward other people.

At more than 4 years out, your therapist should have some ability to tell you what their impression is and if you are simply incapable of more progress it would be nice for you to know that so you're not wasting money and time with endless therapy that will go nowhere.