person A: I let people so much in my life and they've ended up betraying my confidence i had in them."
person B: I can sympathize with you. I've had a lot of betrayal in the past. The ONLY thing to do is to continue looking for trustworthy individuals. 
person A: I have learnt the hard way_comma_keep your friend circle small.
person B: Not for naught but_comma_ a dog won't ever betray you <3