Depression knocking me down again

If you’re financially able, seeing a therapist could really, really help you in this situation. You should have a session alone first, and then a session with your husband to discuss your insecurities. The first session would be to talk to the therapist about how you’ve been feeling, and what you’ve been experiencing. The therapist can help you figure out how to word the things you want to say about feeling like you’re easily replaceable. The most important thing is to stress that these fearful feelings about him leaving are based in your personal insecurity (which I’m assuming is the case), not something he has done to make you think he would abandon you. I wish you the best of luck. This situation sounds difficult and emotionally draining.