I'd say slow your pace, you won't have all the answers or know how you feel when it's something this heavy and it's still so raw. Time for lots of self care. Does he know you know he's on the apps? Have you spoken to him? Maybe take some space and time from him while you get your head together. As for more long term, try to not think too far down the road. Know that you totally have what it takes to get the job done and although it can feel like a lonely road, you are never alone. You are worthy and your value is not dictated by another's behaviour. You are so capable and resilient enough to get through this no matter how you decide to move forward. I know it's scary, but you've got this 💪
You’ve got it mama, even if you do it alone it’ll be that much rewarding when you see that your doing a wonderful job!