Yeah, he is high maintenance, but shizuka knew that, can you really blame him for being that way after his childhood, well I guess I only forgive his attitude because I'm insecure too so I guess my opinion is biased.
But I understand that Yuka is his ex girlfriend and they are still friends but I wouldn't like the guy I am dating to admit he is still weak to his ex girlfriend words.
I do agree, he should talk these kind of things not only with his friends but with Shizuka too, after all, he is the only one that can efficiently eased his doubts.
Also let's not forget how Yuka bugged his phone and also yelled at Minato after cheating on Shizuma after forcibly snatching the phone from him. She still acts like his keeper and consider that Shizuma and Minato met basically because Shizuma was majorly heartbroken over his gf cheating on him... I think Minato is justified in feeling miffed.
This chapter wasn't about Minato being "miffed" (I think he's be justified too if it were the case because that tramp seriously needs to find another manga, lol). I'm talking about the awful date and then just taking out his mood on Shizuka, even when he asked what was wrong. I get that a lot too =__=

Minato is so high maintenance, it's nice that he can talk about his dissatisfaction with his friends, but talk to Shizuka too.
Also sending him that pic from that club was fucking trashy. I know his friend did it without his knowledge, but you told the guy to go - it's fucking work, if you go out drinking don't be an attention whore. (yes, I know it's his friends thinking they're being funny)
I though Minato would treat Shizuka better than this, so far I'm not feeling much love from him.