Fiance felt like he had to explain quickness to cum

So I had been edging my fiance for about half hour to an hour (for those that dont know it's basically bringing them close to cum then stopping and moving play elsewhere to keep it going) I dont think he realised I was doing it for that reason and we finally started having sex.

(Now I did this on purpose because the sex is so much better and more driven by passion that way.)

We start having sex and yup, it was great! Less than 10 minutes however which I expected, when he came he actually tried to explain to me why it was quick? Like we are engaged and have been together for years.. idk I guess he felt embarrassed?