I think this^ is exactly the issue. It's unfortunate that you couldn't resolve your transference before she retired because I think you're right that these unresolved issues are driving the intensity of your feelings. I think continuing to see her with these feelings is likely to increase them, and then what do you do? It may be possible to work them through with your current T, and it's probably worth trying. Or perhaps you can settle with exchanging e-mails a couple of times a year?