First of all, I have also read what purports to be the book of Enoch, and I have similarly discerned that it is not from the Spirit of God. That said, there very well may have been a Holy Spirit inspired book of Enoch sometime in the past, but what we have today is not it (imo).
As to your angels question, notice what Jesus said in the passage of scripture that you quoted.
Mat 22:30
For in the resurrection they neither marry, nor are given in marriage, but are as
the angels of God in heaven.
The answer to your question might be found in the "in heaven" part.
In other words, contrast that with what was said here:
Jde 1:6
And the angels which kept not their first estate, but left their own habitation, he hath reserved in everlasting chains under darkness unto the judgment of the great day.
There are angels of God in heaven, and there are also angels which kept not their first estate, but left their own habitation. The latter have been reserved in everlasting chains under darkness unto the judgment of the great day. Peter gives us a little more information about this latter group of angels.
2Pe 2:4
For if God spared not the angels that sinned, but cast
them down to hell, and delivered
them into chains of darkness, to be reserved unto judgment;
How did these angels sin, and what does it mean that they kept not their first estate (beginning, commencement, principality), but left their own habitation?
Is it possible that they sinned by leaving heaven in order to procreate with the daughters of men here on earth?
Personally, that is what I believe. In any case, this is a specific set of angels who are being held in chains, and it does not pertain to all fallen angels, of which Satan is one himself.