Sure thing! Try the following-- get Hazel treats, and use them to lure her back when she bolts. Go to the loch every chance you get. And after church, at the picnic, don't open up to Marion ; ) Good luck and happy fishing!
Ah-- Effie's path isn't in the game yet! She'll be romanceable eventually, but her story line isn't scheduled for a ways down the road yet. For now, it's just the three MacLeod girls' paths in-game.