Actual Infinity in Reality?

[Jehanne]

It seems that the fabric of space is expanding--like a loaf of raisin bread being cooked. Raisins are the galaxies and the space between them expands while it is being baked. Raisins move in the dough even as the dough is expanding. Everything is getting further apart but not from a center. 

Expanding means the volume is increasing so I don't understand your last sentence.

And in a flat spacetime, which is what seems to be the case, space is infinite in extent.

And yes, it is the case that expansion can happen with finite space. You are correct here.

My point is that expansion can also happen with (and, within) infinite space.  And, if the Universe is infinite in spatial extent, that does not change the fact that there is a finite distance between any two points.  Ditto for a beginningless Universe with respect to time!