He wants to be the kind of guy who is a man's man. A guy who will say 'fuck that' to the idea of not doing anything about the very obvious desires they both have.
But he's not that kind of guy. He's a nice guy, and so when she mentions flowers he simply leans forward to kiss her cheek before standing up.
"Sure thing, love. I need to get home and take a shower anyway... I'll catch up with you later?"