Let me guess, you want a LTR that is like the ones in your grandpa's time:

1) A woman that need men. 2) That respects you. 3) That is honest. 4) Virgin. 5) Young and beautiful. 6) Feminine. 7) That dress with a dress and not like a man, has no piercings nor tattoos. 8) Submissive, religious, not a slut. 9) That is not brainwashed with feminism. 10) No drugs, no mental illness. 11) She wants to have a big family and uses no birth control pill.

And there's more in the list. And those are really hard to find women nowadays.

You may fall in love, since if the girl is too good to be true, you love yourself and your heart tells you to get her, since she's good for you, but always use your brain, usually when you are in love you don't want to see the red flags, problems that will become bigger or a big pain in the future. My rule of thumb about that is that if each time you see her, it's a pain, and you don't feel well, then you are tolerating the situation because you love and and she's very hot, and it won't get better.

And it's good the advice others told you, it won't be a fairy tale.