Should I feel offended?

Me and my bf has been sexually active for about two years now and he often says when we bring up the conversation that he prefers head over sex… whenever we have some time to (in my eyes) squeeze a quickie in or if it’s late in the night and we have to work he says ‘do you just want to give me head?’ That’s like his first response all the time. He says it very often this makes me feel bad because it makes me think our sex isn’t good. Is it just me or is this a little offensive ? Idk I feel like I would never say anything like that. If u ask him plane out he will say he will prefer head over sex anyday. MKes it feel like sex is a chore when I’m ready to do it and he just says oh can you just give me head and that’s it ??? IDK