The constitutional convention was actually only supposed to fix the Articles of Confederation, the actual first government of the United states. The Articles of Confederation was weak. The new constitution was becoming strong. Anti-federalists were afraid that the goverment would become to controlling like Englands was at the time.
The first move you should make is to take things slow. Just show her that you care about her, see if she feels the same way about you, and see what happens after that. If you feel a spark, try to go a little farther in your relationship, but not toofar.