<human>: Thats kinda paraphrasing

we were arguing, she started fighting with me over how i dont show her enough affection and that i dont call her enough. so we go back and forth bitching at each other and this is when it comes up (over text)

me: whats wrong with you? Lol i dont wanna deal with this anymore

her: okay. if you really wanna do that go ahead i'll find someone else who actually cares

she says this to me...and recently she confessed that she fell the hardest for me more than with any other guy.. so wtf? 

So I tell her, "wow cant believe you said that" And she replies, "i dont get why you're surprised. thats exactly what would happen, youd do the same thing"

so now i feel like this kinda "deadens" any possible future i have with this chick. i brought up that shes probably looking for some guy and she said shes not.

is this a valid reason to get mad over or would i be overreacting and selfish to get mad shed say this? is this an actual red flag or did she just say this to get a rise out of me?

Can you summarize the given text in a few sentences?
<bot>: Girlfriend says shed find someone else pretty much right after if i end things, kinda stales relationship for me but not sure if im interpreting this correctly