Assalamu Alaikum dear brother you are absolutely right as a Muslim we believe that the relationship and the couples are predefined by Allah almighty and he knew everything better and our Soulmate has been selected for us. similarly you describe very well about the arrange marriage and love marriage but I personally would like to say that arranged marriage is more powerful because in love marriage is only a short duration while arrange marriage in my society run long time similarly I can say both the partner should understand and do compromise for happy life.

Good luck