Baka you need to retake that discussion about money and regular expenses in the family? Also, how do you record yours and your husband's finances? Generally, masasabi mo ba na magastos kayo as a family?
Mukhang may expectation na, as a wife, dapat marunong ka magbudget.
It seems there's a miscommunication somewhere along the line kasi you know he gave you money to spend yet he was saying you need to be more thrifty.
He hasn't apologized and he won't if he doesn't he think he did anything wrong. Trying his POV, you got money and spent it on wants rather than needs. When he called you out on it, you did the silent treatment, confronted him, then back to silent treatment. (I THINK HA? parang ganito yun kung nakikipagmatigasan siya until now)
Also, am I correct to assume na calm yung paglapit mo sa kanya pero hindi namaintain yung calmness all throughout the discussion?
Probably he saw it as confrontational. Parang may hint of "sumbat" yung spiel mo even if you didn't intend it to be that way. Sometimes it happens lalo pag may hurt pa.
Were you too sensitive? Not really and it's normal to be offended every now and then.
Siguro yung mga nangyari afterwards lang eh saka na naging issue? -- di nakatulog, couldn't look him in the eye, return the money, silent mode, expect him to apologize, etc.
Eto pa pala, nabasa ko na pagkauwi ng husband after a long day at work, it's best if he's cared for. So mukhang pagod at grumpy siya kaya niya nasabi yun. Kaso naoffend ka niya so you weren't able to become his "safe haven".
Sorry kung di ko yata naexplain ng maayos? Might be better if you check Secrets of a Fascinating Wife

Anyway, have a sit-down and talk to your husband again once you're sure both of you are relaxed (wag pag pagod from work) and really open to discuss finances.