I have a colleague at work - a senior middle-aged individual who, by all accounts, isn’t overly friendly with many people. We work together a lot and have a good, respectful relationship. Still, I am often stunned by what he shares with me (for context, City/professional services/stiff environment): 1. about his issues in childhood, 2. estrangement from his father, 3. his financial concerns, 4. he complains that his wife isn’t making much, so it’s all on him. 5 how he can’t go on holiday, and many more things. He will often call when we are WFH, delve into personal subjects, or comment about me. I don’t get it; I wouldn’t share this information with someone from work but only with my closest friends, etc. Maybe this is acceptable in some lines of work, but people at my workplace usually don’t go this deep. I normally just listen, and I am sympathetic, but it’s just so odd and I find it bizarre. Isn’t it or am I being unreasonable?