Helpp

So my best friend is finally in what he considers a good relationship but the he messages me alot saying things like "alex called me and i told her about my anxiety and I apologized because im annoying but then alex said something about talking to maddie about how annoying i am but its okay cause she loves me" and "i told alex how scared i was about school to start cause we're at different schools and you know how my last out of school relationship went and i don't want her to leave me and she said that I shouldn't care because we aren't going to get married, we're just teenagers" idk what to do like i know in my heart these are bad signs but i dont want to ruin the little happiness he has rn idk what to do does anyone have any advice?