Does anyone else feel lonely?

I recently came back from a one week trip in Dubai. I had a lot of fun experiences and overall it was quite enjoyable. I just felt really lonely at times when I was surrounded by couples and families, wishing there was someone I could share all those experiences with. I guess it could also be because I have been going through a breakup. But I'm wondering if others also experience this feeling of loneliness and missing out? It's kind of dampened my mood for planning my next trip