Problem housemates what should I Do?

Hey guys I share a house with 3 people one couple and a male I also live together with my partner. The problem is the Internet box is in our room yesterday when I came home the girl next door who is foreign sternly said to me will u turn the box on I then said to her I didn't know it was switched off which was true as I was out all day so I turned it on and tried to help her get connected then later on she said her boyfriend who is French handed me the mobile saying my boyfriend wants to talk to me her boyfriend ended up accusing me of purposefully switching it off I was angry with him for accusing me of such a thing and told how dare he saud to that to me I do my best to help I'm sick and tired of the rest of my housemates saying it's my fault and asking me to reset the Internet I don't need this what should I do about this they are making my life hell the couple also are friends of the person who manages the house so I can't say as myself and my boyfriend will be the ones to leave