Have you ever liked/loved 2 guys at the same time?

Ladies, I find miself in this situation: a guy makes my heart beat fast, I'm attracted to him (under every aspect) but at the same time he makes me feel as if he is really into me but there is no certainty for the future. We share  moments of tenderness, great conversations, fantastic sex. When I walk away from him, though, I feel like I am never 100% sure of his love and I would need some more affection. He's definitely faithful, that's one thing I know for sure. He cares, but in his own way: he knows I'm independent and able to make my way through life: if I'm stressed he'll say: you'll be fine, don't worry.  On the other hand, there's another guy: real man, true gentleman, treats me like a queen (not just a princess), hard worker, great values, good manners, sense of humor, protective but willing to always support me and push me to acheive my top goals. He asked me to be in a relationship. The thing is, my heart doesn't beat with him. But I love the feeling of being with him. I'd see myself with him in the long term. If I'm stressed he'll work the problem out with me and support me in every possible way. And will send me flowers in the meantime. 
I have been seeing the first for 10 months, the second for 8 months. No judgement please. What is your opinion, you who are probably a bit more experienced than I am when it come to love? I've only had a couple of heartbreaks in my life and I am still discovering who I am and what I want. Thank you all.
 

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