cool best thing to do is spoil your kids... I'm the same mate single dad with 2 kids fair enough they're a lot older than your little-un.. But I've done the same for the last 6yrs spoilt the both of them..and all i got from the ex nut was complaints and moaning..
SO if you can't spoil your kids and yourself who else can you spoil... you're only a child a small amount of time in your life..so it's best to have fun and be spoilt..you're an adult a long time..not that it stops you from having some fun lol