This is my first post and i'm kind of embarrassed, which is why i decided to add anonymously, i hope it's okay:)

I am currently dating a guy, whom I met through my sister's boyfriend. He is nothing but nice to me, attentive, kind, funny, blahblah and I enjoy spending time with him. Now, we've been on 4 dates and he keeps asking me out. Recently I met my sister's boyfriend and he told me quite a bit about this guy, which has me concerned. He is supposed to be a huge player, as in dating numerous girls at once and leaving them once they had sex... But he also said that he has never seen him put so much effort in as he has with me and usually by this time if he still hadn't has sex with the girl, he just leaves her. He told me these things, because he loves me as if I were his own sister and is worried I'll get hurt.

I am super unsure what to do with this information and the guy in general... I mean I really do like him but I am concerned. I had gotten out of a super shitty relationship like a year ago and I haven't really been interested in anyone before this guy. I just don't know if it's worth the risk. Maybe I'm overthinking it. :S

Has anyone been in such a situation? Do you ladies have any advice perhaps? What would you do in my shoes?