I need advise, my partner and I have 2 kids together, and I have 2 kids from a previous relationship, one of them is a 16yr old boy that has been getting in a lot of trouble and doing drugs, we have found drugs in the house a few times, which is very hard on all the family, my partner has been supportive tru it all, however the last few weeks he has changed, him and my son don't even talk. When my partner cones in from work the whole atmosphere in the house changes and he has a look which I can only describe as hatred whenever my son is in the house with us, I have confronted him and he has admitted that he does in fact hate my son, I just don't know what to do...please advise me.