Yes, I think that's comparable to 'stuffing it down.'

Justin is very demonstrative compared to Hydra (but everyone is, compared to her). She must be more open with him than the rest of us, but I don't think she'll ever be demonstrative and he knows that about her by now, surely.

When she was what - eleven? - she opened up to someone who possessed her and made her try to murder a load of people - and one of them did die. That would certainly put you off spilling your guts, I think.