I have had limited exposure to PMs, and the last one who was in her 60s used to always refer to her previous experiences with: "At the end of the project, I was the most hated person, but the project got done."
She was a very experienced having done two SAP implementation, and many projects in the banking industry. She also mentioned that after a big project she'd leave on a good severance package until the next project.
I am planning on moving more towards a PM role and currently as a tech lead my experience has been very positive maintaining very good relationships with other devs. I don't really want to lose that. Does it mean that moving towards a PM role will create more antagonisms with other devs? I've read parts of the Guide to the PMBOK, and the CompTIA Project+ manuals, but nowhere are mentioned the emerge of adverse relationships.
Does becoming a PM mean that I will deteriorate my relationships with other devs, or am I drawing too much from one person?