How do I 15M get my partner 16M to trust me more and open up?
When I had first met my partner they were joyful,cheerful, friendly and just the sweetest person I had ever met, they helped me improve in a lot of ways I can't really say now but basically their mental health has started to fall apart(they do have DID and some other mental disorders) and obviously as their boyfriend I can notice the changes but they simply refuse to acknowledge it and keep saying they're fine.
I won't say much about their trauma and all but they do get pressured a lot by their family and it seriously has had an affect on them, in Valentine's Day I was so excited to show them the gifts I made and more excited for their gift because in their social media notes it was written "got smth special planned for fine shyt hehhehe" But as days passed after being left on seen, they finally exploded on me, a full mental breakdown, crying and apologizing for being the way they were, telling how much they didn't deserve such a caring boyfriend like me when they couldn't keep up with my love and care. This was just one of the situations where this type of thing had happened and obviously I tried to comfort them but they completely shut off after that.
Even a few days ago, they said "Stop comparing me to (family member they hate)" So I replied who even said those things, worried and they replied quite dryly with "my grandma ig.." (Mind you this is the same person who usually replies like "LMAFISKA WHAT??") This reply made me more worried which made me try to pry more and say " I am so sorry about that babe, did you tell her to stop??" (Ik not the best reply, I was also mentally drained at the time and also I am not the best comforter) to which they got angry at me saying "do you think I haven't been saying that to her for the past 2 years?" It was unexpected so I told them if they wanna talk about it I was free and wanted to listen to everything if they wanted and again.. Shut off with hours later "im feeling better!!don't wanna talk about it" The same cycle.. I just wanna be there for my partner but how will I do anything when they don't even open up to me? Should I just like wait it out until they're comfortable on their own? Or should I try to push harder and remind them that I am there and they don't need to "get better" On their own because I would be there? (I lwk only made ts account for help on ts cuz I can't find any help from websites and articles so Reddit is my last hope, plz don't mind the profile)