I have a question; is it going too fast if after I get to know a person a little, I plainly say, "I want a relationship, and I hope that it ends up being a marriage"? I mean, is it so bad to tell the truth?
Idk, that probably depends on the woman you'd ask and how she feels about you. Assuming you don't know each other it can come off as a bit fast.
Also, if two people obviously want to be married, why do they have to be "just friends" first? Yeah, I understand there's nothing serious in the beginning (Now if that's what you call "just friends" first, OK), but can't both parties be honest about what they want? I'd rather not play emotional poker with someone, having to guess at what cards she's holding. I'd rather come to an emotional agreement with someone, where we are both on the same page.
I don't see anything wrong with honestly, and I don't think it's important to be friends "first" as it is important to be friends "period" (and probably easiest to achieve first, before romantic feelings are involved that can cloud both people's vision). But try to look at friendship as the most serious part of any successful long-term relationship.
I believe friendship is the pathway to true love as Christ said, "there's no greater love than for one to lay down his life for a friend" (John 15:13). It is also written that a "husband must love his wife as Christ loved the Church and gave himself for it" (Ephesians 5:25). So if we tie these two truths together, seeing that Christ gave himself for the Church, then that means the Church - Christ's bride - is his friend...and so likewise the wife is (supposed to be) her husband's friend, and he hers. So it's friendship that's at the root of the strongest love there is.
It's inevitable for emotions to ebb and flow throughout the course of a relationship, but if the foundation of your marriage relationship is friendship it can stand against those waves. However if the foundation of your marriage relationship is emotion, what happens when you no longer feel that way?