The Wanting to marry someone you should marry should be a self-evident thing. The first thing I learned when I was single and dating is that if someone wants to be with you, they will be.
The second is that indecision is a decision. Everything that happens in the grey area is what we muddle to avoid the pain of rejection — and indecision is how we do the muddling.
Love has survived generations, wars, disapproving families, prior commitments… and couples still come out on the other end. Just ask most people you know: People have ended previous marriages, migrated across countries, put their dreams of backpacking through Sweden on hold all because they found someone who made it worth their time to stay in one place.