Daughter-in-law seldom contacts me actively. We haven't been in touch for a week. I sent him a message yesterday and didn't reply. Is there no me in my heart?

There are three reasons. First, because she thinks you don't care about her at all, you can not contact her for a week. She will be sad when she remembers it, and will not reply to you angrily. You calm her down and she will tell you what she is thinking. Second: She is too busy recently to contact you. In this case, it can be said that her mind is not on you. The third type: she is used to not looking at her mobile phone, so she didn't see the text message.