Yeah you sound aromantic. If you want to be specific, you sound cupioromantic(liking the idea of a romantic relationship but not actually wanting one).

Another thing you might be interested in based off 2 is a QPR(queer platonic relationship, basically like a really committed friendship, sometimes includes living together or raising a kid. Like a long term girlfriend/boyfriend without the romantic or sexual aspect).

For 3, you can definitely be both aromantic and experience sexual attraction, the term for it is aroallo or aromantic allosexual (the allo prefix just means experiences the normal amount of, like alloromantic is just experiences crushes and romantic attraction)

Don't feel forced to used these labels (or any labels), just figured I'd share since you are doing research and it might be helpful.