I thought we were discussing Paul's letters, not Peter's.
I suggest that the angels in Rom 8:38 are fallen angels.
Rom 8:
38) For I am persuaded, that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come,
39) Nor height, nor depth, nor any other creature, shall be able to separate us from the love of God, which is in Christ Jesus our Lord.
Why would "good" angels try to separate us from the love of God?
Also:
2 Cor 12:
7) And lest I should be exalted above measure through the abundance of the revelations, there was given to me a thorn in the flesh, the
messenger of Satan to buffet me, lest I should be exalted above measure.
"Messenger" is "aggelos ".