Long story short, over a period of 3 months (due to extenuating circumstances) ex and I didn't meet in person, regular phone-calls etc.
During this time, due to outside factors causing very high stress levels including losing a job suddenly in redundancy, I lost a lot of weight (this is not a humble brag - I didn't need to lose weight and it personally doesn't suit me at all if l lose too much). When I met up with ex finally I could see and feel he had lost this physical attraction and knew it was due to looking so unwell. In his text following this meeting he ended the relationship. I accepted the break-up not questioning the reasons etc.
Part of me feels it was very shallow of him and I am well rid, another part of me says maybe I should have explained why I wasn't looking my best which I didn't. I know how important physical attraction is particularly for men, on the other hand I found it shallow. Am I wrong? I probably need to work much harder on self-esteem.