In other words, dating establishes social confidence, helps people learn social skills like manners, consideration for others, cooperation, and conversation.
Personal identity is developed through relationships with other people. When a dating experience is successful it helps to build our personality.
God created us to need interpersonal relationships.
In Genesis it says, Then the Lord God said, "It is not good for the man to be alone; I will make him a helper suitable for him." As Adam and Eve demonstrate, no matter how many friends we have, in order to fulfill our deep need for love and affection, we need close relationships with others, especially the opposite sex.
How can I reassure him I still love him and get us some help?
Sex is a vitally important area in marriage, so it's worth facing this situation head-on.
We never got passed first base, as they say, and I know this helped when we eventually stopped dating. It's good when you are doing things in groups because it can take some of the pressure of having to keep the entertainment value up by yourself.
With others around, there is usually plenty of great ideas for having fun!
Lastly, I was involved in other things besides dating.
If that's the case, your husband will have to find healthy ways to reduce or cope with his stress. In the meantime, don't allow impotency to eliminate your physical connection.
If you abandon loving touch, you'll feel more alienated from each other, which only increases stress levels and irritability.