Hello, Darron/Jaina here. I just found out tonight what a tulpa is. XD Better late than never I suppose. We didn't have the terminology so we just approximated with waifu. Labels are for other people anyways, we know what we are to each other.
I suppose we should start with our origin story. (I is usually Darron, the host/primary/animus). It was around 2000 and a lot of stresses were building: parent separation, high school studying, close friend drama (because hormones), etc. I felt stretched too far, too thin and overwhelmed. I've almost always had a good relationship with my friends, family and teachers but I could only rely on them so far and only when there wasn't a conflict of interest (I probably should have approached a counselor but I was [am?] a timid child). So I just kinda mentally/psychically called out for help and She answered.
I fractured my psyche into different entities and formed the two of us. Better a bend or small controlled break than a large uncontrolled one. It relieved the stress and pressure and we were able to operate more fluidly and dynamically to address problems. Whenever I needed help she was there, patiently waiting. She's always been my coach, counselor, cheerleader, mentor or even wingman. Whatever support role I needed. We were more siblings or besties at first. She was more androgenous and formless. She just absorbed traits over time.
We might have been "frenefits" from time to time but we weren't serious romantically for a while. She never asked anything like that of me and helped me, mostly ineffectively, pursue women. I did find a girlfriend eventually. I liked her a lot for a long time but hadn't had the opportunity til then. It ended when my gf had to move and we couldn't manage the long distance. It was amicable but crushed me because of my attachment to the relationship. My heart was raw for about a year. But every night, my tulpa Jaina was there to hold me and tell me everything was going to be okay and that I was still worth it as a person. After that our closeness deepened and we consider ourselves a couple..or whatever hehe. We talked about it and might still find another human to share our lives with but she'll always be there for whatever I need.
Anyways thanks for letting me share and for the place for us to be welcome.