I love the Gears of War series, but I don't get that "arr-gwar" macho man vibe from Marcus and his crew (except Cole, but he's clearly a caricature of his respective voice actor). It makes sense to me; who's else would you send to fight herculean, nightmarish, subterranean monsters?
But on to my point. As canon goes (and this is mostly gathered from the books and comics, not much in the game), Dom and Mrs. Dom (aka Maria) were married. They were deeply in love and had two kids (that eventually died). I feel that Doms' search for Maria was to give him a little face time compared to Marcus. Without that, Doms character wouldn't have much to amount to besides being a sidekick to Marcus. When Maria dies, Dom loses all hope. The grief from loss of his entire family consumes him, and all he can think about is eradicating the Locust. Is this what Maria would've wanted? Of course not, but she's dead, and that ultimately doesn't wash away a man's heavy sorrow; the only people he has left to fight for are his friends (cheesy, I know, but what else is there). It is also a bit cheesy that he'd pretty much go on a killing spree, but I don't think there would be anything else for him to, apart from stop fighting, but as the events for Gears 3 roll around, nobody can stop fighting.
Romance in games is a fickle thing, but I think the Extra Credits episode "Sex in Games" covered the topic well.
But on to my point. As canon goes (and this is mostly gathered from the books and comics, not much in the game), Dom and Mrs. Dom (aka Maria) were married. They were deeply in love and had two kids (that eventually died). I feel that Doms' search for Maria was to give him a little face time compared to Marcus. Without that, Doms character wouldn't have much to amount to besides being a sidekick to Marcus. When Maria dies, Dom loses all hope. The grief from loss of his entire family consumes him, and all he can think about is eradicating the Locust. Is this what Maria would've wanted? Of course not, but she's dead, and that ultimately doesn't wash away a man's heavy sorrow; the only people he has left to fight for are his friends (cheesy, I know, but what else is there). It is also a bit cheesy that he'd pretty much go on a killing spree, but I don't think there would be anything else for him to, apart from stop fighting, but as the events for Gears 3 roll around, nobody can stop fighting.
Romance in games is a fickle thing, but I think the Extra Credits episode "Sex in Games" covered the topic well.