The thing with this is also that there´s no question at all I could ask this potential T that would give me an answer as there is no answer. I mean, she could never, out of obvious reasons, tell me if the emotional bond will grow or not, if it will be strong enough or not.

I must admit that I just don't understand your perspective or experience of emotional bonds. You saw your past T for only 12 sessions, yet you are grieving the loss as though she were a close relation of long standing. That seems odd to me given that you seem unwilling to give anything of yourself to help create an emotional bond. You have been very guarded in your encounters with new Ts, saying it is because you're hurt and not feeling able to trust. Fair enough, but if you are withholding, it is unreasonable to expect tremendous caring and attunement from the Ts you've consulted. To subject them to your "skepticism" and tests for not giving you the emotional response you want when you're unwilling to show the part of yourself that would elicit a bonding response seems ineffective and inappropriate to me. It's as though you want them to be responsible for your feelings with them. But emotional bonds are relational; they are not one-sided. We get what we're willing to give.