<human>: Summarize the given text in a few sentences.

So I'm going to try and be short and sweet.

I recently starting see Marcus, we've been on a handful of dates. I met his friends already. He is very vocal about how he feels about me. If I asked him to be exclusive right now I know the answer would be yes. He seems ready to jump into 'relationship mode'. He is very attentive, a gentleman, he says/does all the right stuff. I wasn't feeling good and he was so caring and comforting and it make me uncomfortable. Honestly, I am so used to guys being jerks/withholding their feelings that the fact he is so open about his is putting me off. I'm not sure if the issue is with me or if it's with him.

In the past I've dated guys that end up being jerks (think narcissistic or guys that enjoy the chase). There is something about their personalities that has attracted me to them, though I cannot put my finger on what it is. I would've killed for them to be excited and eager to see me all the time. However, Marcus is eager and perfect on paper yet I am really put off by it. I honestly don't know how to respond when he says nice things to me.

What is wrong with me? I can't tell if I'm just not 'feeling' Marcus or if I'm just not used to being treated well

I know this is super vague, I am having a very hard time explaining the situation so if I need to clarify anything let me know..
<bot>: I date jerks that give me butterflies, met a nice guy and I am hesitant. What's wrong with me?