After my dear mother, who I know agrees with what I at least meant to say in that statement commented "dissagree," I knew I had gotten the wording wrong. :/ So to clarify: 'dating to find a marriage partner' means basically not dating for fun, but to discern the suitability of someone you strongly think (and have prayed about) you might marry. That means not dating until you're ready to start thinking about getting married soon-ish.
Sorry about that. :/