Losing hope in love lol

I've been in my fair share of relationships throughout my life, and let me tell you, I am not interested in love anymore or whatever "truly" that is. I'd like to think after failures, we learn and heal-- but I've learned that is a wishful notion. I have seen patterns and the slightest tint of red flags throws me off now. I am less tolerant. But I ask myself aren't I suppose to endure for the one I love? Does that mean it is not suppose to be easy? The only time I have felt an inherent sense of love by being oversaturated with hormones was my initial relationships. Nowadays, I can like someone but there is a practical brake pad to me now. It feels different and it makes me believe I am burned out and can't be with anyone anymore. Thanks for reading