I'm not sure if this posts belongs in here or step-parenting. There's been a lot of talk recently on stepping so i'm sorry to join that bus, I guess it's that time of year with school holidays.
I'm new to posting (although I've lurked for a while) so I apologise for any mumsnetting faux pas. I'll try and not drip-feed.
My story is straight forward, there's no huge back story. I met DP just over two years ago. We fell head over heels. He has two children both teenagers. One about to fly the nest (almost) and one early teen. They live with their mum most of the time and although things aren't perfect between DP and his almost ex-wife, they are polite and courteous to each other. I live with DP and we have his children every other weekend plus a couple of nights in the week where we don't have them at the weekend. Both DP and I work in stressful, busy jobs and 12 hour days are the norm for both of us.
I consider myself a good person (I hope), I try to help others in every situation I possibly can. I'm a good friend, daughter, sister, auntie, colleague. I find saying no very difficult and often put others before myself.
I have a nice relationship with DPs children, we get on well, I treat them with kindness and respect and DP and I split the cost of their weekends with us equally so we can all do nice things and eat good food, etc. This is how I feel it should be. I don't love them unconditionally, I find some of the things they do as teenagers incredibly difficult to deal with but I chose to be with their father so I must put up with it.
So the problem is DP has taken up a hobby which takes up A LOT of his spare time. He says he needs it to distress away from work. This means on "our" weekend he is quite often not around. I am now becoming irrationally precious about our time together and it is destroying what was a very loving, caring relationship. It is of course impacting on the time with the children as he protects this time away from his hobby which in turn is making me resent this time with the children. I have never resented them before but it's getting worse.
I know it's wrong, please don't flame me and call me vile, I'm asking for help on how to deal with this.