Interesting experience. It seems that you are really able to absorb energies of life very readily, thus it happens that you got dog hands and tree arm before.
I have a somewhat differing schema for conceptualizing situations like this. To me, it is when someone expresses themselves that their energy is released. In your friend, there were these dark vibrations. As this evil feeling resided in him and he expressed it through his actions or words, it was during that interval that the evil spirits were being released. When his energy was cleaned, his evil energy releasing stopped.
I'm certainly not trying to poke holes at your experience. In fact, I think we have different ways of saying the exact same thing.
Thank you for sharing. This sort of energy work is very interesting to me.
Oh, yes, one more thing.
Your technique of love love love. Awesome. Personally, I use a particular bubble of light that starts at zero size in my center and then expands to envelop me -- thereby expelling any energy that is external to my own essence. From there, evil spirits are banished to the land of infinite archetypes, as without a mind to actively sustain them, they exist only as possibilities.
These aren't the droids you're looking for.