5 months ago, I did - no b.s. - 15 hours of interview process with a big tech company. I was so good in the interviews that I (very, very politely) was putting

5 months ago, I did - no b.s. - 15 hours of interview process with a big tech company. I was so good in the interviews that I (very, very politely) was putting on a clinic for their devs. No word for a week, then I get an email from HR saying they are passing on me with no reason given...after 15 hours of process. A couple weeks later I did an interview with a company I wouldn't have considered because I was so discouraged...ending up liking the team a lot, got hired and 3 months in, it's the best job I've ever had so far.