Grandpa had the red guy kidnap haebom and do some bad shit to him but it didn't work, so they threatened to do the same to taesung if he didn't stay away from him and that's what got him to leave. So this was him trying to protect taesung, bonus points for "you're keeping taesung from having his own kids/my grandkids" hence the extremely obvious lie that haebom is randomly dating a woman lmfao.
Grandpa had the red guy kidnap haebom and do some bad shit to him but it didn't work, so they threatened to do the same to taesung if he didn't stay away from him and that's what got him to leave. So this was him trying to protect taesung, bonus points for "you're keeping taesung from having his own kids/my grandkids" hence the extremely obvious lie that haebom is randomly dating a woman lmfao.