TW: Suicidal thoughts

Due to my BPD, I find myself becoming attached to people very quickly and I quickly go to trying to seek validation from them (despite knowing this is an unhealthy behavior/thought pattern). 

There’s one specific person who I’ve become attached to in this way, and I’m always paranoid that they don’t like me (even though I don’t really have any evidence of this). Any behavior or reactions of theirs that I find is “off” (which makes me feel as though they are angry/annoyed at me) can ruin my entire day, and it makes me feel borderline suicidal. 

Hopefully this made sense. Can anyone else relate to this, or have any tips on how I can cope with these feelings?