No, we can still see it. (except it's for private domain, i guess, but everything that in public domain is free to see)
Ah sorry, I'm not using any phone app atm. But, I saw your boyfriend's profile and checked the "Toots and Replies" ... there's 6 toots in total (and yeah it's your interaction with him!).
Additional, the one we followed will appear in the timeline. But if you want to see the other's tweet, you can go to "Local" or "Federated" feature, or click someone's profile
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