Thanks for your reply, yes I select first then shift select another and whichever option I choose( blend, connect, blend bias) I always get similar result with this middle line connecting some random points(see attached screen). What do you mean by reversing the direction, I need to have these two curves connected in this exact manner.

On the side note, I've managed to get what I wanted to do by just grouping these together but still can't understand why it won't let me combine them... I've been slowly loosing faith in Maya, another problem I've had today was that I couldn't exit insert edge loop tool: I've inserted the edge I wanted, closed the tool, went up into object mode and after going back into edge mode IEL was still active with no way of closing. Uphill struggle every day.