sometimes bad things happen to pave the way for better things. but we are unable to see that, cause humans are by nature short-sighted and can only recognise this in hindsight. so most often, we wallow in sadness for a long time, before we realise that better things lie ahead. [of course, i'm not even referring to any god or divine power.]
i treasure what i have today, not only because they are what i want and love, but also because they are parts of my life and signify the processes and decisions i've gone through to grow up.
and hence, i have no regrets.