So I have no clue if I should end a relationship after a week of dating a person who I knew I liked but we got together and everything seemed perfectly fine until they started getting really  distant and I have the feeling they are cheating on me but I don’t know if I should end the relationship but they said They had wanted to make it official but I don’t know like at all but they are really nice and sweet and litlerally everything I could have wished for but like I don’t know if I should end it please tell me and please suggest a way I could say it in a nicer way