I thought this episode was not one of the best. It seemed strange to me from the start that Mr Edwards would fall in love with a girl so young. He and Jane had none of the chemistry that Doc Baker and Kate shared in the Doctor's Lady.
I understand what other people are saying about how Laura was judging him too harshly because she herself was chasing an older man, however there is a difference. Almanzo was around 10 years older. He was a young man himself in his prime.
Mr Edwards was old enough to be her father. It just wasn't right.