Sometimes when my boyfriend and I drop our friend off I sit In the back with out friend is that bad?

When my boyfriend and I drove our friend home my best guy friend I sit in the back with my friend just to talk to him so he would not be on his phone and I just want to talk to him with out twisting my back already have problems with my back from the surgery 5 years ago anyway my boyfriend doesn’t care my friend like you shouldn’t do that because vince is your boyfriend and my best guy friends mom said nothing but my friend told me she told her she doesn’t think it’s right because my boyfriend might get lonely even tho after we drop him off I climb in the front
Sometimes when my boyfriend and I drop our friend off I sit In the back with out friend is that bad?
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