I met a guy who was big it the city, via a website. It too seemed wonderful, my perfect partner.
He had a child but that's why he wasn't travelling as much now and why he was seeking some life balance. He used to be a work-aholic but not so much now. Or so he said...
It was all a load of bullshit. He lied about absolutely everything. By the time I found out I was too far in to just walk away easily.
In the early days he cancelled meetings or rearrange them to have dinner with me. He would take the day off to spend with me (what's the point in being the boss if you can't do that) - Later found out he was meant to be working from home and he never took a day of work ever.
He would call and text while abroad, sent flowers, even sent me a postcard after I asked if he could.
We chatted a long time online before I agreed to meet him so he used that time to glean as much info as he could about me and portrayed himself as the man he thought I was looking for. He couldn't keep that up for very long when we were spending considerable time together while he was in the UK.
I asked about his dd - he was vague but gave the impression everything was sorted re contact etc. He told me he and his ex had been separated for over a year, but it turned out that this was 'in his mind' and he was planning to leave her once dd was 18 months old. 
Turned out she was less than 18months old and he only walked out on her mum the week after meeting me. He would pick dd up from her mum and then bring dd to his other house (where ds and I would be staying).
I did wonder why this house had no fridge and sockets without lightbulbs (he wasn't actually living in it as had been staying in his london flat with dd and 'ex' but gave the impression he was living there). Lots of plausable explanations... Don't need a fridge as I leave home to early for breakfast and grab dinner on way home if not got a meeting etc
Turned out he had been married before too. But was divorced from her within 8 months, signed and completed! [shocked] Apparently he felt railroad and realised he shouldn't of married her so got divorced asap. He bought her a nice flat and told me she was out of order for expecting half of everything he had for such a short marriage. Personally (after putting lots of things together) I think he couldn't handle when she miscarried and ran away. He still had loads of stuff in his house that belonged to his ex (which he collected up and dropped back to her). He made an excuse about the other toothbrush belonging to his mum (even though it was in his en suite bathroom).
I had serious doubts but he always had a reason, and excuse, an explanation. I was fooling myself by buying into these, partly because I wanted too I think, he seemed so perfect for me. It was only when all the niggles became too much and I had it out with him that he broke down, confessed to a lot of it and cried like a baby. He said he wanted to be with me and knew that if he had told the truth I wouldn't have agreed to meet him. Which was true, and so I accepted that explanation. (More fool me)
Oh and yes, he admitted to having a previous affair (while married and while with the mother of his child) but she had moved abroad now and it was over. He was open about that and open about some other things, but it was designed to make me trust him and he would often say 'I don't know why I tell you these thing, I've never told anyone else'.
I was with my 'partner' for 3 years. I should of left sooner but felt I had to support him through the court case (his ex went crazy over contact and stopped him seeing his dd - again I couldn't understand why as they had supposidly had it all sorted for a year now. Reality was nothing of the sort).
He now lives and works abroad and his ex vanished off with his dd and he is paying private investigators to try and track her down. My opinion now is that it is karma and he deserves everything he gets. He treated that woman appaulingly and if I had known then what I know now things would be very different. His dd of course is the one who I feel for. It's not her fault at all. But I do wonder now if she has a better life without him in it, even though he clearly loved/loves her.
My advice. 3 months is nowhere near enough time to know this man. It takes 6 months for the sheen to wear off and the guard to come down and that's when you see them regularly. That's also when he won't be able to justify switching his phone off, cancelling meetings etc for you. And you need to spend a lot more time finding out about the real him and not feeding him info on what you like (poems etc).
He may actually be genuine and a lovely man. But imo, it takes a certain kind of man to get to the top. He will be very used to telling people what they want to hear & bending the truth to look positive even when it's not - it's part of his job and you have to be good at it to get anywhere.