Am I being too dramatic?

I have 2 friends that are relevant in this story. We sit together at break and lunch, but I’ve started to notice that if one wants to go outside, they ask the other friend and if they say no then we all don’t go outside. They never ask me, but today I said I’ll be willing to go and she was just hesitant to go and kept begging the other one to go. When they are talking they look at each other and not me. When we are walking those two end up walking next to each other and ‘somehow’ I will end up walking behind them. Every time I mention this they always seem to have reasons for it and I’m fed up because I can’t win... I need help anyone please.