@bubbleChestnut3363
It's great that you reached out about this and especially so early on in the relationship - often when people reach out it's been months or years which makes things really tricky to manage!
I think the advice that's already been given here is really good; the only thing I can think of is that it might help to keep in touch when you feel like or when he feels like he's 'falling into depression' or having an episode (whatever wording you both feel comfortable with). The reason behind that is because everyone experiences depression sooo differently. How we respond and support people through it varies on how they experience it. Some people continue to go to work/study and put on a happy face where as others can't get out of bed. Some want to talk and talk and others don't want to talk at all.
In the meantime it might help to have a conversation with them; ask about what seems to trigger it, what seems to help/not help and how they might like you to support them.
For me personally I never had an issue with the enabling/not enabling but the biggest concern for me was knowing how to support them and what they needed. The way I support one person with depression is very different to the way I support another person with depression. There's no clear cut way.
Hope this helps!