I have a mental disorder that I think may be BPD. I was never diagnosed but doctors prescribed me Lexapro and it really did the trick. I am much more stable, was liable to leave my ex-wife, building a new life for me. 
Currently I am in a relationship with a woman (for more than 1 year). I think it is a healthy relationship and she probably does not understand I am more than a bit crazy…

I have a 50/50 custody arrangement about my kids and we are spending all non-kids evenings with my girlfriend. This weekend she arranged a trip to Florida so we spent 72 hours together. I think everything went well, we spoke about moving it together, walked a lot, she said “she was on vacation with her boyfriend” when talking to a friend. We flew back and she suggested we spend evening separately. I understand she was tired et al but I am freaking out. I will not see her for the next 5 days (kids’ time) so I am now agonizing if I did something wrong and I am reading into her slower responses to my messages and such. I am trying hard not to freak out and not to message her more than usual. 

Looking for an advice how to calm down and if there’s something I can do to stop worrying she does not want to see me ever again.