This thread is really good.

I'm not too keen on enneagram personally, but I think I have an 8 fix at least, and may even be an 8

I relate a lot to what is being said here.

I too have ruined a lot of friendships that could have otherwise had potential, it's awkward to talk about, I just try to be philosophical about the situation.

My friend is an SLI-Te E8, I'm not sure if I have a subtype, probably balanced or SLI-Si.

SLI E9s are much more amiable I think, but the contrasts are less. With E8s, there can be cruelty, but also great acts of kindness, and there is excitement too I think, so it just depends what you want, or what you have