<prompt> Human: Moved in with two friends in February, one roommate got a SO soon after and has been spending 80 of his time at her place. Almost never see him, except randomly during the week and on weekends.x200B;He recently decided that he didnt want to pay for utilities anymore.As he is making the personal choice to spend more time at his SOs place but still wants to come and go using the water and electricity and internet I do not feel his argument is valid.x200B;I say he should have to pay them as he signed a lease and when moving in together it was agreed upon that we would split everything 3 ways. He is fully aware I do not have as much financial flexibility as he does, and have to budget more strictly.Am I wrong in this situation? anybody else have a similar experience they could share?x200B;Thanks!x200B;x200B;UPDATE: x200B; Thanks for all the feedback!The amount of time he stays with us is so variable that its near impossible to pro rate if we wanted to.Often times his SO and her dog will stay with us for extended periods of time, just not as often as him being gone.This past summer for example she and her very poorly trained dog were at the house m-friday every week for 3 months. sharing a bathroompower etc. Never asked her to pay a dime. Also her dog left permanent damage to the house, which will most definitely result in us not getting our deposits back, and possible extra fines as we arent allowed pets.I dont feel like hes earned any sort of mercy or leniency based on his track record. I will force a sit down and go from there.Thanks again!x200B;x200B;x200B;x200B;  <response>: Yeah... he needs to pay. If he owned a home and spent all his time at the SOs home he would still have to pay for the utilities at his home. 