Have a teen SC, largely get on well and no major issues currently. However he used to lie A LOT when he was younger, sometimes to make himself look superior, other times to get his way, or to avoid taking responsibility/consequences to something he'd said or done.
Although he is much better now, there are sometimes situations I find difficult to handle. When he's said something mean to my DC but no one else around, so when I try to ask him about it and work things out, he flat out denies and acts like his sibling is the one lying or mishearing things. His dad is useless as he puts it down to a misunderstanding, mis-remembering or no big deal. But it bothers me and I feel pretty disappointed that he'd treat family like this and also that he's happy to just lie.
Is it better to just stop addressing these things with him altogether, and let his relationship with my DC take it's natural course? And just support DC privately?
The kind of things he says are not something horrendous, but still hurtful. I dont really want any drama, just say Sorry and move on. But becomes a bigger thing when he doesn't.