I happened upon this article and thought it was a good suggestion right around Valentine’s Day. A painful aspect of depression stems from the tendency towards doing the opposite of what reflex would tell you to do.
For me I realize when my depression continued to escalate I became harder and harder to live with. The best comparison is being a porcupine. The last thing you want to do is keep that close to you or cuddle it. To both those around the person experiencing depression as well as the person him/herself, instinct gravitates towards the opposite of what should be done. Tenderness is not the first reflex when someone is starting to withdraw or became more irritable than normal.
The most difficult thing about the experience (from the perspective of the depressed person) is that you can’t step out of your own mind and objectively assess what’s happening. You feel as though you want to withdraw from social situations and not seek help.
If you or your significant other are experiencing these types of things, try to take that big leap and objectively look at your circumstances. Reach out, communicate to someone of your pain. It’s the hardest first step, sometimes it can lead to empathy, sometimes confusion, potentially rejection but you have to take it.