>1. You know a girl that you really like but she's with this jerk boyfriend
>2. He gets tired of her and their relationship is getting weaker
>3. He finally dumps her, but you're there for her, comforting and supporting, he badmouths her after the breakup
>4. You're getting along better, she still misses him, but she's falling for you, he keeps talking shit about her
>5. She finally gets together with you and breaks all contact with him, he gets salty, keeps calling and negging her
>6. She is insecure and wants to be back on good terms with him, you have objections, but you trust her, they are friends again
>7. She keeps wooing for his attention, she has less and less time for you and more for him, you're starting to get pissed off
>8. They're suddenly fucking now, you're going apeshit. She says it's nothing, just a one night stand, she still loves you and next year she'll come back to you.

You feel cheated and abandoned. After all you've done for her, supported her emotionally and financially all these years, she chose him over you.

That's literally what is going on right now, numbers correspond to generations, 8 is LGPE