What should I do?

I have been with my boyfriend for about a year. I really do adore him, we help each other by being a better person. We are there for each other, and we are happier people because we have each other. We both have similar personality.

Lately, I have been getting bored of him though, I do not find him as physically attractive. I went online and webcam with another guy and I feel horrible about it. He would dump me for sure, but I can't help but seek attention from other guys, I have this need to always make sure other guys I like will like me. I even want to make out with guys I've found hot.

I feel so guilty and horrible, but I don't want to break up with my boyfriend, I don't want him to dump me, I would feel so sad if I am alone, I would feel like nobody would really want me other than for sex. He would be upset, and I would be totally worthless. because I would think of myself as a slut, which is only a sexual fantasy of me, but I don't really want to be one I don't know what to do!
What should I do?
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