a significant stage in the develop of smth
milestone
enthusiasm, vigor
verve
to cause a person to stop feeling welcome
alienate
present and noticeable in every part of a thing or place
pervasive
unhappy because you are not with other people
lonely
sb who you exchange letters with as a hobby
pen pal
to communicate with someone regularly
keep in touch
able to be trusted
trustworthy
sb who is willing to listen to your problems and give you encouragement
a shoulder to cry on
a situation in which you are close to someone
intimacy