She will not risk showing you affection if she does not believe in your love. Yes, there can be emotional ups and downs in a marriage. Doubts do arise, and we must address them. But unless they are addressed properly, doubts will grow into distrust, which will lead to a lack of affection. If you have done nothing else right in your marriage, please don't fail to show your spouse love and respect at least once a week. Give each other time alone without distractions by phone or email. Schedule regular date nights for intimacy...and make sure you follow through on them. Affection is the fuel that keeps love alive. If there is no fire, the ice inside her will melt and never refreeze. So take some time now to show her how much you care. Tell her how beautiful she is, and express your admiration for everything about her. Include her in all your activities, help with chores, and do something special just for her every day. The more you demonstrate affection now, the easier it will be when you are apart. She needs to feel your love even when she cannot be with you in person. Write her letters and send her gifts. Call her every night before you go to bed and say "I love you". Do something special together every week-day evening after the children are in bed.