Name changed for this as don't like giving out free ammunition
. I've been married to an investment banker (in the media sense of the word- see below) for 4 years- been together 8, and we've got a 1 year old child and another on the way. I used to be in a similar role to him before I had DC's.
This does sound a little bit fishy, I must say. However, there are a couple of qualifiers
First of all, in what capacity is he an investment banker? The reason I ask is that often the word is used by the media/ lay person to mean someone who works in an investment bank (as opposed to a retail bank). However, within investment banks, the term is usually reserved for someone who works in Corporate Finance/ Corporate Broking/ M&A. So, for example, my DH works for an investment bank, but would not describe himself as an investment banker- he'd say "I'm in derivatives".
If he is claiming to be in Corporate Finance (ie describes himself as an IB), then the travel sounds feasible, but very little else does- especially the bit about being out of contact for days at a time- that just doesn't happen. In fact, there are few banking jobs where you could do that, but it's the most unlikely in CF.
I disagree with expat that IB's don't do online dating- in fact I have a few banker friends who met their wives/husbands through "My Single Friend"- however, I'd agree that they don't tend to trawl chat rooms. IB's are normal people- I know the media likes to portray them as rich and handsome evil geniuses but most aren't and they don't just walk into bars, say "Hey, I'm an investment banker" and people leap at them and beg to have their babies. The hours and unreliability do put a lot of potential partners off.
If he is genuine then basically, I'd agree with those that say you have to have your own life/friends, get used to holidays cancelled at the last minute and weekends/evenings alone with the kids. Personally, I don't mind that much as I've always been someone who likes/needs my own space plus I have help (no family close by) so I'm not 100% relying on DH for childcare and can get to the gym/ go out with friends or whatever. You have to make the most of the time you have together, but again, that can put pressure on holidays/nights out to be perfect as you don't have that much time.
On the upside, DH will probably be semi-retired at 45 so we'll have time then and of course, I'd be lying if I didn't admit it's nice not to have financial worries.
HTH