1- I broke up with my ex gf two days ago and today she started messaging me asking for help ("I feel destroyed", "I need you", "can you call me?", or any other long texts asking for forgiveness/telling me how much she still loves me. That sort of things) and calling me. What to do?

2- Another ex gf, which I broke up with on December of last year, invited me to her graduation party and graduation ceremony. Yes or no?