i have noticed that in the last week or so (my daughter is 6 weeks old) that she is not responding well to her daddy. every time he tries to put her to sleep, stop her crying etc she cries and cries and wont settle. as soon as i take over she settles within minutes!! it is not only tiring and frustrating for me to be the only one who can comfort and tend to her but it also makes her dad feel bad as well. he just doesnt seem to know what her cues are, what she likes or when she needs to sleep, feed, or play. i have tried to tell him some things that i do with her and he has tried some but it doesnt work. what should i do?