A friend of mine once introduced me to two sisters. Although I didn’t realize it at the time, his intention was for me to connect with the older sister (24F). From the start, there was a connection and a pleasant conversation, but the younger sister (21F) began flirting with me and showing interest. After some dating, I ended up in a relationship with her. The relationship was intense and romantic, moving far too quickly.
I idealized her, and within a month, I was already imagining starting a family. However, she turned out to be disrespectful, impulsive, inconsistent, and careless. She didn’t know what she wanted, and we broke up and got back together several times before she finally left. Our relationship lasted less than two months. During that time, my friendship with her older sister grew stronger. She supported me through the tough moments and the breakup.
Less than two months after the breakup, our feelings developed into something more than friendship, and now we’re in a relationship. I love her, and she loves me. It’s an honest and loyal relationship, but I’m conflicted. Part of me still longs for the younger sister, dreaming of a (probably nonexistent) future with her. Meanwhile, the other part craves a future with the older sister, who is honest, respectful, consistent, and genuinely wants the best for me.
The older sister knows the situation; I’ve been open with her. She’s decided to stay by my side, but we’re both afraid of what will happen if the younger sister regrets her decision and tries to come back. I feel guilty for not fully appreciating what I have and for being unable to leave the past behind, even though I know the current relationship is best for me. What is happening to me? What should I do?