Had to cut off yet another woman for talking to another guy

At some point the issue has to be me, I have an old soul. I’m a 25 year old guy I’m in shape, I’m 6 feet tall, and now 7 out of 7 women I’ve taken seriously ended the exact same way. I had to cut off a girl that I’ve developed strong feelings for because shocker there’s another guy in the picture. We aren’t exclusive yet but it’s a long distance relationship and her making out with me while he’s sitting in another state wondering about her and then her telling me about him after the fact doesn’t sit right with me. It has me knowing I’ll be sitting around while she’s doing the same for me but i also feel so bad for him as well. I texted her this morning and told her that I really liked her, really wanted something with her, but I also like myself too much to compete with another man for her love and told her I’ll make it easy and drop out of yet another triangle. I’m tired man. I guess I’ll have extra motivation for the gym. Im going to be training like a fucking animal. Pain is energy and energy cannot be destroyed it can only be converted