Awkard Sex Text

Ok so me and my boyfriend are in a fairly new relationship... He texted me today trying not to make it awkard but asked a very awkard question... He asked what the white substance is that he see's come out when or before we have sex... Now girls he's 34 not a 17... After my response which was basically idk cream vaginal fluids cum def not an std or anything you need to be worried about.. (I was tested being that we're in a new relationship so I know!) He goes on to tell me that he's been with other women b4 and this is his first time seeing it so that's why he was asking... This made me feel like I'm the only 1 and weird about the whole thing even with knowing that it's completely normal,, and then I go (or is it) why am I the only 1 that he's supposedly seen it with ?! My question is what more should I say I didn't respond after he texted that... Should I bring the convo back up or try to figure out if he's worried about something ?? Honestly,, I dont feel like he was trying to make me feel bad and was just curious but the question and statements following kind of made me self conscious with my lady parts... What would you do/say?