<human>: Can you give me the gist of the text in a nutshell?

25 M&F, together 8/9 months

I'll keep it short.  My SO is a very critical guy.  If someone does something stupid, or something he dislikes, he pretty much flips out or criticizes them harshly (either to me or to them directly).  I think I'm used to that already so it doesn't bother me too much (although I do interject and try to calm him down; I'm a very patient person).

Here's the issue:  **I'm so used to hearing him be negative, that when we talk via text I naturally interpret things with his usual attitude.  This leaves me feeling insecure fairly often**, then I seek reassurance, then I feel stupid/needy for seeking reassurance... etc.  Again, this is only when we're not together that this happens, because in person I can hear the tone/see the body language he uses with me.  

Also, I worry he may not tell me if something is actually wrong.  **It's only recently we've decided to be entirely honest about things we like and do not dislike** (I'm sensitive so he's been holding back a lot for the past few months, because he didn't want to hurt me or make things worse).

What can I/we do to rectify the situation?  I haven't discussed this with him yet because it's a recent realization of mine.
<bot>: Difficult time perceiving SOs intention/tone through text because he's generally a negative person.  Usually, there is nothing wrong and I'm just misinterpreting.  How fix?