Bounce back stories

[Babypiggy]

Hi - long story short- divorced. ExH has moved on and within a relatively Short period time (19months) has had a baby with new gfriend. We have a 7year old DS together. Sometimes my DS says he misses his brother when he is at mine (usually at night time when he is tired - his sibling is now 7mo ths old). I feel like Im just not offering what his dad can with a family set up with his new GF and baby for my DS to play with. We shared childcare 50/50 which i know is good for my son. Sorry i just feel like a real failure. Anyone else been here?

I think you sound wonderful.
You're raising a child and it sounds like you're co-parenting well despite a quick turnaround on your ex's relationships. Most people would really struggle with that and lash out, often using their child as a weapon. With 50:50 and the way you speak, it seems that you're being a supportive and good person - you should be proud of yourself.
Many children feel really torn and awkward and bitter after a break-up of their parents. They often lash out at step-parents, step/half siblings and their own parents. Not only is your son happy to have a little brother, he's comfortable saying that to you. That means there's nothing but love between the four people in your unconventional family bubble. That's great!
It sounds like you're single? Good stuff. Everyone always says that the best part of the relationship is the start. It's the dating and the romance and the hoping they like you and waiting for them to call - you get to experience that soon. Also, being alone is so nice too. You're in complete control of yourself - no pressure to be sexy all the time, no one stealing the duvet etc.
The way your son has responded to his new brother tells you that he'll be great big brother to any future children that you might choose to have - that's a relief! Sounds like he's learning how to be caring and compassionate. Your comment about what's best for him shows that you really care about his interests so it's great that he's flourishing as a big brother and that you're allowing him to.
I think you're doing really well and I've only read a tiny paragraph about your life. You're not a failure. You've got this.

*five people (I can't count to five apparently hahaha)

Id focus on making sure you highlight to your son all the great things about having a new baby brother, but also all the great things about being with you. I dont mean in a competitive way tho. Make sure you enjoy lovely one on one time, which Im sure you already do.
It must be so hard to feel he misses his other home when hes with you, but I think you sound lovely. You havent lashed out with insecurity or worry. Youre doing brilliantly

Thanks both the brother is now seven months old. I dunno i just feel on the fringes Of his life/ less important- pathetic i knkw

Bumping this to see it anyone else has ever been in same situ???