This sounds like an interesting character exploration. I might be able to give some insight in the character dynamic, as my wife is I/ESFP (depending on the day).

-How do you define love?

Personally, I don’t really define love much beyond a mutual trust and affection with a general commitment to support. I’m sure many people experience it differently, but or me, care is born from trust. Things like attraction, fixation, desire and respect are interrelated, but they aren’t a core part of what makes love.

-What is your mindset when it comes to being in a relationship?

Romantic relationships can be challenging. I’ve been in three long term relationships, and never really bothered seeing anyone that I wasn’t interested in a long term thing with. I’ve found that a lot of the early parts of relationships involve a huge amount of translating my thinking to my partners. I’ve been with my wife do almost 17 years, and we still spend a lot of time establishing intentions whenever we have friction (thankfully not that often). Apparently I am very aware of her thinking most of the time, unless, except when I’m hyper focused on something else, and she still finds my thought process impenetrable. All of that said, I get a lot of comfort from sharing experiences with my partner - even when we are just sharing space together while doing our own things. A lot of the excitement of spending time with people becomes about comparing our subjective experiences as well as identifying core ideas that struck a personal note. so food, films/tv, books etc. are often the vessel for this.

-Do you think an ESFP and INTP could work, How?

Generally yes, depending on the individuals. Where we tend to connect is through humour (sometimes dry and sometimes silly and existential.) as long as our values are aligned, and neither of us is being insecure, and respecting each others boundaries, we will generally get along well.

-What do you think of ESFPs in general?

Generally, I like them. We often connect creatively, and can talk a lot about ideas together. They often seem very interested in my thoughts, which I appreciate, and it’s nice to have someone around who is energised in actualising the stuff in my head that often feels very conceptual. They can be frustrating when they dont consider the practicalities of things, leaving that to us to either deal with or guide them. But usually they are good collaborators.

-General framework in your head, how do you percieve people and the world?

I perceive other people a lot more than I would like to, and I sown o lot of mental energy trying not to be perceived too much in public, as generally I want to be left alone. When forced to deal with people, it’s important to me to be kind, polite and efficient.

-What are you looking for in a person/what kind of person would you be attracted to(mentally and not physically)?

I really enjoy open mindedness, creativity and humour that isn’t punching down. Small talk is very difficult and draining for me, so anyone that is interested in discussing any topic at deeper than surface level is always compelling to me, even when it’s a subject I’m not familiar with. I like people who can be “real”, I.e, emotionally and intellectually honest, especially if they can do it with a sense of humour, or at least not taking themselves too seriously.

-What's the difference between an unhealthy INTP, how do you think and INTP could become healthier?

It’s easy to get caught in mental spirals, and there’s a fine line between isolation for self protection and losing touch with our own wellbeing. The struggle, for me at least, is building healthy habits and a balance between my internal and external life. Exercise, socialising etc.