This is the correct answer. It's not helpful to OP but when you meet the person you're going to spend the rest of your life with "you just know". So if you're not feeling it then it's a strong indication that either the person or the time is not right.
'Course it's important that the other person feel the same. If you propose and she says Yes but isn't sure to her core then the prospects for a long, strong relationship are not good.
There's a reason why marriage is a 'sacred vow before God'. It's a commitment that both parties are entering in to for the rest of their lives. Since most of us are no longer religious the notion now seems antiquated and corny, but the implicit meaning is the same regardless. This is the main reasons why living together before marriage does not guarantee that the married will work out. It's the opposite in fact, because living together lacks the commitment that marriage implies. If you can just pack you shit and move out when times get tough then what incentive do you have to stick it out and make the relationship stronger?
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