I just don't see Andy as enamored with Tessa as he is Bevin. I'm not saying there have to be 'fireworks' between he and Tessa..YET, but I just fail to see any romantic connection as of yet. I think when they are together one on one, their talks and time together have been somewhat strange. As another poster said previously, there is very little eye contact among he and Tessa. Im not convinced Tessa is really "into" Andy..not at least as a lifetime partner.
Will her feelings grow? Who knows..but I wouldn't want to commit unless I knew wholeheartedly the person was totally in it for marriage. He's here to find a wife, hopefully. She knows this, yet still commented how there are other girls there who really really like him. That points to Bevin, IMO. Whoever he chooses in the end, whether it be Bevin or Tessa, I hope they are as crazy about Andy as Bevin is.