I think its wonderful that you two have each other and I hope he works on his issues with having you with him all the time. I know I feel far more comfortable in social (ok, anywhere outside the house) situations if my husband comes with me, but I have severe agoraphobia. Maybe he just feels more comfortable with you with him and you need to explain you maybe don't always have the best time looking at tools. I know that my husband hates to go grocery shopping, so I have worked on being able to do this by myself, maybe he could try that as well?