There's nothing wrong with allowing yourself to heal through rewriting a traumatic experience - an essay based on personal experience.
I just want to say that, in real life, when you’re an adult, you do have to, sometimes, go past old traumas in order to improve your life. Maggie says herself “well, life is too short!”. There’s no shame or belittlement in trying to build yourself a new memory to replace a traumatic one. That’s not ignoring one’s feelings. That is acknowledging that you found a reason strong enough to go past that. Speaking from experience, Maggie’s actions are completely relatable.
And as much as this fandom loves to fantasise a brotp between Maggie and Kara, this relationship doesn’t exist. Those two characters don’t have a relationship. At least not yet. They literally shared two scenes without Alex and they were both work related. So as far as I can see, there’s no Brotp. All Kara knew was that her sister, the person she loves the most in the world, was super excited for valentine’s and then she was not. And guess what, she’s upset now because of Maggie. Again. The same Maggie who made Alex be sobbing on the sofa not long ago. So Alex tells Kara what happened and Kara might feel bad for Maggie but her sister is upset and as far as I know, no one’s feelings are more important than Alex’s for Kara. So you really think Kara would just overlook how sad Alex is and prioritise Maggie’s feelings? No, she would do what she did and tell Maggie - let me remind you again, a person she doesn’t really know at all and has no relationship with yet - “hey, I know you’re experience is not good, but hey, how about you act like the adult you are and don’t let this ruin yet another valentine’s day for yourself because this is not school and that girl, my sister, does like you back and all she wants is to make good memories with you”. Not with these words obviously. And Maggie does what she does for Alex because Alex is worth it. Alex is worth changing that traumatic memory. Sometimes, all we need is a little push from an outside source to make us stop bathing in our own filth for fucking ever. Some people don’t want to be miserable about past stuff forever and Maggie is one of those people and do you know what? There’s nothing wrong with that. I really don’t see Maggie’s apologies as her apologising for not liking Valentine’s day. I see it as her apologising for walking off when Alex did nothing but listen to her. Also, Maggie never said “ah OK I love valentine’s day now”. She said “you’re the woman who COULD MAKE ME like valentine’s day”. As in “I found a reason that seems to be good enough to let myself heal from my traumatic past experience”. Maggie has feelings too, that is correct but the way I see it, she decided to stop giving a loud voice to these bad feelings and, at the same time, providing to her girlfriend what she wanted, which is going to help her heal. Again, as she said, Alex could make her like valentine’s day. She saw a chance and she’s taking it. And the way Alex is, her body language, her insecure tone when she asks “don’t you hate all this?” shows to me that she more than acknowledges Maggie’s feelings, but she’s questioning why is Maggie doing it if she hates it. And Maggie tells her that it’s because she could make her like valentine’s day, And that’s exactly what she’s doing. Healing instead of perpetuating this pain.
To be honest, I don’t know how old is the average watcher of Supergirl, but after almost 32 years navigating this mess of a world, I really think Maggie carried this whole situation as most adults who are tired of suffering would.Anyway, this is how I see it based on my personal experience with trauma and healing.