It seems to me (based on your post) that you’re trying tooooooo hard to make friends. And that gives off a desperate vibe…and it’s human nature for many people (male and female) to be turned off by that. A desperate vibe gives the impression that one is needy…not confident. And confidence is one of the top qualities that attracts people.
You’re not sure if it’s you or them? Sometimes you may be the problem. Other times your friends might be the problem. Mistakes can be made by both parties. If someone is frequently disrespecting you by taking advantage of you…using you…putting you down…stabbing you in the back…not being supportive of you in your times of need…then that person is NOT a friend. And you should have the confidence of letting such people go as opposed to keeping them in your life when they are not healthy for you. If you know that your friend is wrong…if common sense tells you that your friend is wrong…then you don’t need to apologize to them either. A confident person knows what they want out of relationships and establishes boundaries.
^At the same time…while social interaction/friends are essential to well-being…it’s also important for you to have OTHER INTERESTS besides your friends. Your life should NOT revolve around your friends. You don’t need to be sooooo dependent upon them for happiness and fulfillment. In other words, your time can also be used to pursue hobbies/interests. It’s more than okay to be by yourself sometimes. Spend time with family as well.
I remember when I was a kid, my mom used to say “Don’t be too dependent on just one friend.” This was during elementary school. It took me years to understand what she meant. And she was right. Don’t get sooo attached to one person…otherwise you risk getting hurt. People cannot always be trusted and one thing I’ve learned in life is that as you grow older…it seems as though there are very few people that you can call sincere friends. The less attached you are…the less likely you are to get hurt.
People may ditch you for a variety of reasons. That shouldn’t (in my opinion) make you depressed. There are FAR MORE serious issues than “losing friends” that can cause depression such as…the death of a loved one…or having a terminal disease…being traumatized in some way or the other, etc. If you’re depressed because of friends…then that means you’re giving these “friends” way too much power over your life…and that might mean you have low self-esteem. Respect yourself…love yourself…be comfortable with yourself enough so that you don’t mind being alone with yourself from time to time. Having respect for yourself…builds confidence…and that’s one of the basic requirements in building relationships with others.