I am dating someone that I believe has BPD. He has not outright told me, but a friend of his told me (not too sure how I felt about that, I thought maybe at the time the friend was trying to scare me off). I have not confronted him as I'd rather him tell me on his own terms. It wasn't my place to find out like that and it's been bothering me that I was given unsolicited information. I didn't ask to know but was told when my date walked out for a minute. 

With that said, I've noticed that over the past few days, this guy has stopped texting me. I know that he recently dealt with a quite stressful situation. I asked him if everything was okay or if I had somehow inadvertently upset him, and have been left on read. We have a date coming up but I don't know what to do or think. He lives a little over two hours away, so it'd be a drive. I don't want to commit to that not knowing what's going on. We've been talking for over 6 months and this would be considered a 3rd or 4th date (2nd in person date). Should I tell him that a friend of his told me about this? Should I give him space and assume we're still on for the date? This is an awkward situation I'm in and not sure what I should do.