Anywhere in the astral when you breath out - you can see it, it's cold?

Well, it is like the question above - I was just wondering. sometimes I am not clear on if I am merely in a dream or what.

Saw a glimpse of an ex in a dream? not long ago, things, the home seemed stage as if it was a real home above/somewhere else, but still (sort of hard to explain).

As he was walking before me, this is when I got to be aware and I breath out and cold air came out even if inside.

But maybe it was just a symbol as I did find him cold, as in his feelings, not having real empathy. I knew his mask was just fake, superficial charm.

[wstein]

The 'astral' is an extremely big place.
Even just the formal 'Astral Planes' are approximately 7 times as large as the space-time continuum (where Earth is located).

Is it cold anywhere on Earth? Many places, where depends on when you ask.
Is it cold in the space-time continuum? Most places except black holes and stars.
Similar answers apply to the 'astral'.

As to my best guess what you are really asking:

If you were astral traveling, it may well have been cold in that location when you two were there (no indication about other astral locations). Locating somewhere in the astral merely because it is slightly cold is impossible.

If you were dreaming, the cold most likely was a symbol of something not related to geography or weather. For example, you suggested he was emotionally cold.

Thank you so very much =)