move out, take out, remove - cause to leave; "The teacher took the children out of the classroom"

alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

drift apart, drift away - lose personal contact over time; "The two women, who had been roommates in college, drifted apart after they got married"

wean - detach the affections of