I just wanna make it clear I am not diagnosed with BPD, I just came across it and I'd like to know what about it because some of the symptoms I resonate with. I'm planning to see a therapist or someone when I can.  


The whole Favourite person thing I really relate to. I've only just turned 17 a few days ago and ever since I was about 13 I'd really latch onto one person. I normally find this person online as I don't go out much and I'll talk to them all day everyday, pretty much obsessed.   
It's similar to having romantic feelings for them but the strange thing is - normally whoever this person is I wouldn't want to pursue a relationship as I don't want the 'fun' to end.   
I like the idea of talking to them all day as if they're my best friend, telling them everything and obsessing over when they text me but it makes me feel uncomfortable to loose control.  
I like the feeling of 'I like them but I don't want to pursue anything so let's just be friends'.  
If they don't reply normally I'll get really upset and my mood normally revolves around them. It's like I'm a reflection of my fp.  
If they're texting quick and being nice I'm suddenly REALLY happy and hyper but the minute they take an hour to respond or only say 'lol' I start questioning everything and I'll crash down.  
I also noticed that if I'm talking to someone who's depressed themselves I'll also start feeling depressed.   
If I lose my fp I feel really bored, empty and lost. Once I find my new fp everything happens again - the whole cycle.  


Sorry I don't really know what the point of this was but yeah.