[When you state that it is OK to date several people at one time, it seems as if you think that there is one special person out there for you.
While I agree that love is a decision that we make day after day (whether it’s love of one’s spouse or love of neighbour at work, etc.) - I don’t agree that it’s wrong to think there’s one special person out there for you.
God has known me from all eternity, and He has a plan for my life, one that I can accept and go along with, or one that I can reject and go my own way. Part of that plan is whether He will call me to married life or not. And I think that if He calls me to married life, God knows full well the person He has for me. If my future husband is ‘out there,’ God knows him, knows where he is, knows when to bring us together, and is actively allowing whatever is happening in my life to happen so that ‘in the fullness of time’ we will be ready to meet; we’ll be ready - in part - for the shared vocation He has for us.
God knows this about people He calls to marriage the same way He knows which order of nuns He’s calling a woman to join when He calls her to consecrate herself to Him as His bride. He knows, when He calls a man to the priesthood, exactly what work He has for that man - missionary, parish priest, teacher, pope. Why should God not know precisely which man alive on the planet now is the one that He has set apart for my husband?
The person God has in mind is my ‘special someone’ who is out there.
I think the reason so many people divorce is HUGELY influenced by their not cooperating with God at all stages of the call to marriage: They don’t wait until the fullness of time - in God’s plan - for the right person to be revealed to them (read Tobit!). They rush into marriage because they are hitting thirty, they’re on the rebound, all their friends think they look like a cute couple, etc.
I think it’s when people decide that the choice of who to marry and when is entirely up to them that they start on the wrong foot. If they aren’t willing to submit *the choice of spouse to God’s plan for them, they aren’t likely to submit the day-to-day living out of marriage to God’s plan.
But if you submit your whole self and every relationship (work, ‘romantic,’ familial, friendship etc.) to God, you not only never two-time anyone, you never treat anyone like a shoe to be tried on, and you don’t rush into emotional relationships that aren’t in God’s plan for your life.
It’s all in His plan. We’ve just got to trustingly submit to His plan, and not take it all into our hands and try to force things to happen on our schedule.