Hello. I am a step to two girls. 4,7. Bio dad invited girls roam event. Usually when that happens, bio mom and I spend quality time together while he has them for the hour or so. There is no custody agreement so we have the kids 95% of the time. For some odd reason this time when bio dad randomly decided to see the girls, gf said she don’t know if she wants me to go. I’m and upset about it. I feel excluded. We have been in a weird place in our relationship but still enjoy our time together. I’m feeling less apart of a family and more like a babysitter.