Yesterday, I was feeling extremely worn out and depressed due to some friend drama. When I got home, I performed a heartbreaker banishing spell. Later that night, a faun/satyr like spirit with all black eyes approached me. I vaguely remember him trying to comfort me but I did not trust him as all of my other spirits seemed to have retreated or have been repressed by the presence of the faun.
He offered to let me bind him to a vessel but I refused.
Advice? I've worked with spirits for a few years but I've never had one approach me like this or have power over my other spirits.

Mm if you do want to bind him, perhaps ask professional conjurers? They should be able to determine whether the spirit is trustworthy or not : )