Pit, I read it to quick,but yes I see now,haha. I caught on to your exactly wink face with you abbreviating certain words..justsaying,I'll let his one slide. If it makes you feel better about yourself,lol
OP,idk,if this been going on for a long time,it may just be how she is and nothing you can do. I wonder if she is maybe sick or some thing is wrong..but if you are saying she only eats during the summer,well have you considered maybe making her enviroment a little bit hotter? That may stimulate a feeding response.
she just may also be this way forever,hard to accept,but I mean if she is healthy,then I guess that's that..maybe come summer feed her a bit more than you normally do your others.