is it normal to feel resentful…..?

Asked: is it normal to feel resentful…..?

My father recently passed away, we're all still dealing with it really as it was quite a shock since he was perfectly healthy a few months ago and he just deteriorated so fast. he didn't write a will proper to my knowledge but he left my step mother in control of all his assets, so as well as the money he left (in excess of 30,000) she owns her house (that was my grandads) and my childhood house (that was my dads). And i don;t want to, but i am feeling so resentful of this. Because i LIVE in the house she now owns, my dad was letting us live there (me and my brother) rent free (we were just maintaining and paying the bills). My brother is at university and i travel a lot, so i tend to go away for a few months and then come back. I have lived out of the house for a few years. But overall i have lived in this house about 23 years, it's the house i grew up in, the house my real parents had their marriage in and i just feel like it should belong to me and my brother.

My dad didn;t specifically leave anyone anything, just her in control of his assets, but i know unless i say something she will not offer us anything. I'm not bothered about my grandads house or the money. She knew my dad for 6 years and has 2 kids to him, and she lived at my grandads, so that is her house, and it's the most valuble one, at about 160,000 or more, our house is only a small terrace and is worth maybe a third of that.

I don;t want to feel liek this so soon after my fathers death, but i can;t help it, should i approach my step mother and ask her to give us the house? (not now, but in a short while)