This post is full of things you should know about Blitzwing.
1. BLITZWING IS VERY BIG.
Don't forget, folks, he's a big honking robot! He transforms into a tank, a jet and a robot, and as such he has to be very big, around 40 feet tall or so. So PLEASE, remember that you can't just treat him like a normal fleshie! By all rights, he absolutely towers over the residents of Melanore, and is pretty much as big as most of its buildings. SO PROCEED WITH CAUTION.
2. Blitzwing has 3 visually different personalities.
The red, gap-toothed face is his angry, or "Hothead" persona, who likes to abuse caps and spam you with insults. The blue face with the red kind of monocle-thingy is his "Icy" persona, and would probably be the closest to sane out of the three. Still, he's very logical and analytical, and won't hesitate to add your information to his data banks for future torturereference. Lastly, the black face with the red features is his "Random" personality, and that's exactly what you'll get. He's fond of bad jokes, breaking the fourth wall occasionally and other things, most of them unsettling. He's also prone to fits of hysterical laughter, and yes, he's laughing AT you, not with you.
3. Blitzwing is armed to the denta.
The triplechanger is packing flame turrets and ice beams, so try not to mess with him. Hothead prefers to use the flames in tank mode, while Icy favours the ice beams in jet mode. For Random, anything goes...
Friendships?
Not really. He just wants to find the other Decepticons, so the closest to a friendship he'll come is more like... a temporary alignment of interests. Random sometimes likes to pick on certain characters just for shits and giggles, though.
Romance?
Haaaaaaaaahahahahahahahahahahaha you can try, if you really want to deal with 3 nutcases...(Highly recommended that you don't, though :B)
Of course, if there are any other questions you are welcome send me a PM!