My ex texted me yesterday I do not deserve to be happy

hehe so I have him blocked everywhere but I forgot truecaller and I do not usually open truecaller as such but yesterday I was searching for an hr number and i saw that he texted yesterday... it was an image saying like even in a whole lot of crowd I will be texting u.. i did not react or reply... he went ahead texting more things... like why do u get to be happy...btw its been 2 years since we have broke up and I have blocked him again... but it lowkey did afffect me