Anyone else feel like this?

First and foremost, this is a sad and real post. Just a glimpse into my life. I literally have no friends. No one checks on me, no one tags me in any posts on social media, no one asks me to hang out, nobody. I have no one. If anyone were to look at my messages, everyone I talk to, is family. The two people I talk to most is my mom and my sister. In elementary school, I made a friend who turned out to be more like a sister and she still is considered family to both my mom and my dad (theyre divorced now). She ended up moving away and we reunited in high school. Let me tell you, i was so happy to finally have her back in my life again. In the time away, she obviously made new friends. In total, the group i hung out with had 6 of us. She did invite me to her parties and what not, so i came to know them all and we got along, but i ALWAYS felt like the outsider. I didn't know the inside jokes, I didn't go to school everyday with them so I wasn't around much. So I just didn't feel as closely bonded that they did. Time went on, we graduated, and everyone slowly drifted apart. Typical drama happened and some aren't spoken to anymore. I know I wasn't close to any of them with the exception of the one friend I made in elementary school, but they were the only friends I really had. Now, no one talks to me. They still tag each other in posts every so often (most of us are moms now, so we have a life, i know). The girl I've known longest, and consider family, doesn't reach out to me, ever. Even after I dropped everything, drove 20 minutes to her, with my husband and son that was under a year old at the time, to help her pack everything she owned as quickly as we could to get her out of her abusive boyfriends house. Even after listening to her sob and let out her feelings about anything. They have been on and off again a few times. She's now pregnant with their second child together, this will be sibling number 4 in their family. She's also engaged to him (i found out through facebook) I worry about her safety and ive expressed that to her, all to be told im a bitch and shut down. Im still friends with all of these people within that group of friends on social media. But on Facebook, you can see your memories from the previous years, and every time I see a post from when we used to hang out, i wonder if anyone ever thinks of me. Because I think of them all the time. Some people might say to this "just reach out to them", but it hurts when they make suprise visits to each other. No one ever surprise visits me. As an adult, I have developed anxiety, depression, and recently figured out im and empath. I don't know how to make friends, because I feel like im extremely boring. Im not the type to go out and do things, i prefer to be at home. And i don't like when people stay at my house long. I get drained very easily in social settings. It doesnt take long for me to be wiped out and ready to go home. I want friends, but i don't know how to make them. I struggle getting out of my comfort zone. I would rather not interact for long periods of time. I literally have zero friends. I feel alone all the time, and I get really upset when my husband goes out with his friends, because it just makes me realize I have none. Some days it bothers me, but most of the time, it doesnt. But the days it bothers me, I'm usually a mess the whole day. I just want someone to check on me once in awhile. 😔