I’m not fuckable I guess

My fiancé has been kinda avoiding sex for 6 months now and I feel like I’m just not even attractive anymore. Maybe work has gotten him too busy? He has been doing a lot of early shifts, but then why would he tease me about what he’d do to me in bed and sucking skills if he’s not gonna follow through?! Maybe I’ve gotten uglier over the months ? Maybe I’m not sexy anymore? or am I just paranoid?!?