<human>: Can you provide a brief rundown of the text in within 3 sentences?

We've been together five years, very happy, etc, etc.  I come from a comfortable but budget minded family, his family lived paycheck to paycheck.  I am frugal and often feel guilty about spending money on myself, his attitude is more that money should be enjoyed as long as you are paying your bills.  I currently make decent money as a new nurse while he is in school, we are putting money into savings (about $200/month), and have no current debt.  However, I find myself getting upset looking over our shared account and finding he is spending money on "hobby" stuff - his latest thing is Legos.  We bought a huge bin of them for about $150 a few weeks ago, and today I saw another bill for $38 for more Legos (seriously, how is fifty pounds of Legos not enough??).  I don't begrudge him his hobbies, and I don't want to dictate his spending, but looking at stuff like that makes my eyes twitch.  He always feels like I am criticizing his spending, and that since we are doing ok now he doesn't see what the big deal is.  Am I overrreacting?  This is sort of an ongoing thing with us.  I feel like if I gave him an "allowance" he would hate it and feel like I'm treating him like a child.
<bot>: I'm the breadwinner while he's in school.  We're ok financially, but I resent what he spends on his hobbies.  Am I overreacting?