So my mum and dad split up before I was born and he chose not to be involved with us but I have of course seen pictures of him so I do have a mental image of him and I’ve always thought he was very attractive. My mum has a very bitter opinion of him so I’ve never asked her if I could ever meet up with him or asked anything about him. About a month ago I got a friend request from him on facebook and we started speaking on there and have met up twice (my mum doesn’t know). The problem is I feel as though when I meet him we’re going on dates, I get butterflies when i’m with him and have such strong sexual feeling towards him. He hasn’t been necessarily sexual towards me but he has made remarks on my looks and I really try not to but I can’t help but flirt with him and idk if I’m reading it wrong but he seems to love it. I’m just genuinely obsessed with him. Would love some advice on how to approach this.

TLDR: Recently met up with my biological dad for the first time at 20 and fancy the pants off him. Advice?