So the guy basically dumped her for being too shy and she has emotions for her.
Sounds like she loves to live a life of fantasy and dream. Is she very young and naive?
Now she has another person. **If he has no real bad qualities, **then I think she should go for it.
It is ideal if one gets married to the person who one really has emotions for but there is more to just love or what we call love before marriage than love after marriage. Many a times it is infatuation than love.
Realities of life are like cold shower on love before marriage.