Originally Posted by cherokeesam
I'd prefer Tasha and Clint to have more serious history, since it's at least canonical. I kind of doubt in WS's case that (a) Tasha would've had many opportunities to meet him, if at all; and that (b) WS would even have an emotional/sexual urge to "hook up" with anybody at anytime. He's a programmed assassin, who they activate for specific missions and then put him back in the (ice)box when he's done. It's not like he has downtime or a social life.
I think one justifiable way BW could be involved would be for her to have some knowledge of a secret Soviet agent of legendary skill who disappeared a long time ago, but now seems to be back making kills and leaving some kind of calling card.