Vedic chart doesn't change as radically (changing rising signs) it only pushes the dasa in question (Sun-Venus) out about 2 weeks which still falls in March 2010 to March 2011.
However I am a advocate of the Raman ayanamsha, which is a precession value, and that switches the sub dasa in question to June 09 to June 2010, so you're already 3 months into the "marriage period". I would say though that as Jupiter moves into Aquarius in December 09 and opposite your Moon with appropriate sub dasas, the chances of significant relationships are much higher. Can't guarantee marriage though, but some connection yes.
Relationships with you must be a little "tough"
since your are both Sun and rising sign in Aries with Mars and three other planets in Leo. However your ascendant and Sun are flanked by benefics, which helps your relationship skills.
You're basically just past the peak of intensity of your sade sate period with Saturn just having moved into the second house from your Moon, so that is going to lighten things somewhat.
Your seventh ruler Venus is aspected quite closely by Saturn, from either the Western or Vedic standpoint; this is going to increase stresses and obstacles to happiness in marriage/relationships. Saturn is in seventh house in navamsha also. All together these influences could cause you to be attracted in individuals of significant age difference.