Whether your husband loves you, loves your children, has a good parent-child relationship, or a good marital relationship—that's your husband's responsibility. If you're fixated on seeking love and approval, you'll breed resentment.
Whether your in-laws love your husband, your children, and you themselves—that's their responsibility. If you constantly feel sorry for your husband and children not being loved, you'll take on their responsibilities, breeding resentment.
You have your own responsibilities. Take care of your health, give your children unconditional love within your means, take care of your family, maintain economic and personal independence, and don't force or try to change others.
Others have their own paths to walk; we're just on the same road. Separate your feelings from others' feelings, and always learn the first lesson of life: "Separation of Responsibilities"!