Am I cheating??

I’ve been with my partner for almost 3 years, we haven’t got a very good sex life & never really have! He is loving too me as in kisses & cuddles & telling me he loves me! He doesn’t really help around in the house much & in left to do everything. Due to the lack of sexual interactions I sometimes feel like we just friends living together! I had a dream last night that I cheated on him with someone I know! (I haven’t cheated before) but now all I can keep thinking about is this person in my dream & it’s really fucking with my head! Help please??