[RitaOK]

This is an interesting revelation to me. I had not thought about it, actually. After decades as a Protestant, our Bibles called the Holy Spirit our “Comforter”. I loved that, frankly.

To your point, I read that Jesus deigns that the Apostles must “... wait on the Holy Spirit..”. That is as close to “proceed” as my reason can get at this unsophisticated level of my knowledge on this revelation that “the Son” was *added*.

[ebb tide]

And I will ask the Father, and he shall give you another Paraclete, that he may abide with you for ever. John 14:16 Douay-Rheims

The above is sufficient for me to accept the filioque.

[ebb tide]

And then there's a third opinion of the Holy Trinity, which is that of Pope Francis:

“Inside the Holy Trinity they’re all arguing behind closed doors, but on the outside they give the picture of unity.”