I had been with my boyf for only 9 months when we got engaged,(and i was only 19.) We didnt start planning the wedding til about 2 years later, at that stage we had a flat with a mortgage. 9 months before our wedding, he left me for another women, who he is now marrying. if you love eachother, then you make it work. i was with my man for 4 years when he left me.i think, you can be together for 10 months, or 10 years, but you never know whats around the corner. So dont rush into it.