If this guy was not interested in your daughter he would not be making the effort that he has been, your daughter has to trust that he likes her and doesn't want to hurt her or else she will never be able to have a healthy relationship if she is already thinking that it's going to fail. There is no quicker way to ruin a good relationship than to think negative about the person you like. If he meant any ill will against your daughter he would have stopped all contact when he stopped working for her. It's understandable that your daughter is a little gun shy when it comes to trusting in a relationship because of past relationship but not all men are the same and there are still some respectable men out there, she doesn't want to blow it if this could be the beginning of a good and healthy relationship. I think she would be better off going with the flow and don't think negatively about the relationship it just started so I would give it some time. I really don't understand why he hasn't kissed her yet unless he is a true gentlemen and wants to wait for her to be ready or maybe his family raised him to not be so pushy when it comes to things like dating and kissing in a relationship. Maybe your daughter should find out how many other women he has dated he may not be used to dating alot. Maybe if she finds out his family background and how he was raised she will better understand his way of thinking as far as dating is concerned.
You're right this time apart with be the true test of how he feels for her and it will also give her time to work on the self esteem issues that she has about herself and her thinking she doesn't deserve a man's love and attention. It may have been a little too much too fast anyways and this will give them both time to see what they want and if it's each other they want. She may be confusing cockiness with self confidence something she needs to find in herself, the confidence to believe that she does deserve to be happy and loved and that looks shouldn't really matter it's the way the person treats them.
Usually when a person has a near death experience or life changing accident some people usually see life as a second chance and don't want to blow the second chance God has given them and what to enjoy every aspect of the life they have now and also your daughter doesn't really know if her type is the type that he has always liked. Not every cute guy likes the model type some think they are superficial and full of themselves. Maybe the experience has made him more laid back and less uptight and less apt to look at a person's outside than inside he might want to take things slow and make sure it's the right thing for him that is why it's very important for her not to blow it.
Alot of people mistaken self confidence with cockiness maybe he is upbeat and happy about his life now and makes him come off as cocky.