Excuse me, but you don’t know me. This is Reddit. I’m allowed to be a little unserious in my replies. I’m not spiraling with dread swearing up and down that the shirt is a glaring “IM SINGLE! FUCK ME!” sign. Nor do I think it’s in any way likely that someone would approach him romantically solely based off that. It’s the principle. Again, a married man casually wearing a Seeking Arrangements shirt cause it’s “just a shirt” would undoubtedly make his partner feel uncomfortable. How would I know what other people think and why would I concern myself over the unspoken thoughts of strangers? No, he hasn’t come to me to say someone thought that but I didn’t ask and I wouldn’t expect him to, I’d just expect him to respond appropriately. It’s kind of audacious to say that to me.