Jesus Christ- you took 2.5 mg ed for three months... Who told you to do that?
I doubt your estro is low still, but I'm sure some levels some where are out of whack and that's the loss of libido you're still feeling.
If I were you, I'd stop everything and just cruise on a trt dose of test for a few months and let your body normalize. You can try to add a bit of mast maybe 50mg eod to the cruise and see if that helps.
I had some small lumps develop even though I was taking adex and so I figured I'd drop the adex and take letro at 2.5mg to get rid of the lumps they did get a little smaller but I was hoping they would go away thats why I continued to take it so long. But even without taking any AI for 6 weeks and running 1500mg of test my nipples are not sore or tender so that's why I'm guessing my estrogen is still low. Idk I'll probably go get some blood work done soon to see what my levels are if nothing gets better.