What should I do if I go on a trip with some buddies but end up being a light bulb myself?

Of course it is very embarrassing. No one likes the feeling of being a light bulb. That kind of time when you are watching others making love to each other, you can neither participate in it nor look lonely. But most of the time we have no choice but to be a light bulb, and we can't bear to refuse and refuse in our hearts. In such a contradictory inner world, we still lost to others' hard work, and a new "light bulb" was born. One time, I was walking on the school playground because I was in a bad mood. Because everyone knows that the playground is a good place for dates, they rarely go to the playground by themselves. While walking, I saw a couple sitting next to another boy. The young couple was making love to each other, and the light bulb was sitting there. I felt embarrassed just looking at it. While I was embarrassed by those light bulbs, I also spent a few days as a light bulb soon after. During the Dragon Boat Festival, I had three days off, and my two roommates and I decided to go on a trip. We chose to climb the mountain because children who grew up in the plains still prefer the majesty of the mountains. When we were discussing before, they both joked about bringing other girls with them. I thought it was a joke. But who knew they were serious? The night before we set off, two more girls appeared inexplicably. Because I am in a long-distance relationship and my girlfriend is not around. I felt it was too much and I couldn't bear it. But later I still lost out to their generous offer, which included free tickets and accommodation. I thus shamelessly embarked on a two-day, one-night trip to the lightbulb. There were two guys, one girl and one girl. I felt uncomfortable with the way other people looked at me when I walked on the street. Sitting on the tour bus, I fell asleep listening to music by myself until we reached the destination. Two heartless girls were accompanying their female companions. Because they are not all boyfriend and girlfriend, they are just ambiguous partners. I really admire them both. After finally arriving at the destination, the four of them went to the hotel to book a room while chatting and laughing. I was embarrassed and had nothing to do in the lobby. One triple room and one double room, this arrangement looks pretty good. When they climbed the mountain the next day, they were clearly not a couple, but they were more of a couple than a couple. What about carrying on your back, holding hands, etc. This is simply unbearable for me, a mysophobic person. I just concentrate on climbing my own mountain and admiring the beautiful scenery on this mountain. I felt more uncomfortable than being single at that time. I obviously had a girlfriend, so why did I see a group of them showing off their affection here? When the day came to go back to school, I walked directly over there to my girlfriend's place. My girlfriend was very happy to see me going, but due to time constraints, I skipped classes and stayed there for two days. After experiencing being a light bulb, I realized how lucky I am to have someone who can truly love me. It's not terrible to be a light bulb. We must try our best to blind them.