These people both need to sit down and have some empathy for each other.
They could be growing stronger together through their struggles rather than making it some competition about who is worse off. (Which, in this case, the guy has started by not empathizing at all)
My mental health struggles in no way invalidate someone else's struggles.
Everyone also thinks or assumes they know better or best. There is no acceptance of other information maybe being correct even if you present solid evidence. They'll just take you for a fool who doesn't know instead of learning anything from who might have more background or experience.
I stopped doing anything arguments online all together because of this. (Happens irl too though but it's far less polarizing)
Like women don't bash men for how they act when they "have a fever" and it gets the six million likes.
It's meant to just be silly and funny and dark all at the same time. It seems even less mature to gaslight someone for just taking the time to actually relate.
Sometimes our emotional batteries run low and we feel like mouthing off (like this guy is doing) instead of being sympathetic. Most people don't, but we can have a bit of a laugh relating to feeling like depicted in the comic. This helps us let out some of our negative emotions without anybody having to put up with them which in turn allows helps us to keep being emotionally supportive to those we care about.
Its like saying all lives matter, kind of. I don't think this strip is misogynist, but there should be more to it. "I'm sad all the time" is different than the very real physical pain that women experience during their periods, the general problems women have even *getting" high quality reproductive care.
If the man had said, I'm really sad right now, and she was like, "yeah well I'm on my period," and then the comic would still be about insensitivity, in this case the subject is the dismal state of mental health care.
In fact that's what this comic is about...poor access to reproductive care and poor access to mental health care. They clearly both need help and aren't getting it from our capitalist healthcare system