1. If you want to have a great husband, be a great wife. Lead by example. Put 100 percent into your marriage every day. Ask yourself, "How can I make my marriage better today?" If you want your husband to be your good friend, be a good friend to him. If you want him to be loyal, show him by modelling that behavior yourself. Call him at work to tell him you love him; give him a hug when you know he is having a tough day; and don't flirt with others. Reserve the flirting for him & him only.
2. Be his friend. You've got that covered, right? Maybe it's time to make sure you do. When was the last time you had a date night together? Have you taken a vacation alone for 2 or more nights in the last year? Have you turned off the television and asked how he was? Being a friend in a marriage means more than sharing a house or children together. It means listening to and spending time with your spouse. Give him that time. He will love you all the more.
3. Be his sexual fantasy. Actually, you've pretty much got this one covered. He would not have married you otherwise. We all put on a few pounds over the years and we tend to grow a few grey hairs. But, men really don't notice this stuff as much as we do. All a husband ultimately wants is to be intimate with his wife. It is a way to show his wife how much he cares. Also, it allows him to feel connected to you on a deeper level.
4. Know that you're worth it. You are worth every moment you invest in your marriage. The better your marriage, the better your life. Marriage isn't always easy, but it is always worth the effort. The fact that you commit to making your marriage better does not mean your husband doesn't have to contribute towards cheat-proofing it. He is as responsible as you are. It takes two to tango, remember. The important thing to keep in mind is that commitment begins with you.
When you were dating your husband, it was worth your time and effort to be a great girlfriend, friend and sexual partner. Put that same time and effort into your marriage. Once you take positive steps towards affair-proofing your marriage, it is likely that he will take your lead and start investing more time and effort into it as well. What could be better?