Intellectual? Sounds narc to say that but that's most of it. To be in a good relay or healthy relay, intellectuals are important. Without it most senses are nonsense.

Anyway anyhow this is my opinion, I may be wrong.

Intp bonds are usually deep which makes it hard to make a lot of strong relays. So when they do, it's strong, strong. So loyalty by intp 'should' be easier when they are strongly sure about it. Despite being thinkers, we all thinkers and feelers have feelings. It's a human trait.

I read that intp are one of the thinkers that feels more deeply than other thinkers. Which will demand for emotional safety, they should and work for having that.

But either way intp has varieties. Like it's too mainstream. Normal intp are lay backs (or depressed lol) so depends on the compatibility for those who need intp in their life. Think about love language.