Lover
Significant Other, Boyfriend, Girlfriend
noun
A person of romance is someone you do romancey things with. That person is your lover.
The reading is a bit strange. it's the two separate words 恋 and 人 put together, making the reading こいびと. Oooh lala. Two words coming together like two people coming together. Rawrs.
私の恋人は、舌がこえているので、料理にはうるさいです。
My boyfriend has a discerning palate and is very particular about what he eats.
恋人とあい人は意味が全ぜんちがうので使い方を間ちがえないようにしてくださいね。
The meanings for "significant other" and "lover" are totally different, so please don't mix them up.
「先月、恋人と別れたんだ。」「大丈夫だよ。お前には他にもっといい子がいるよ。」
"My girlfriend and I broke up last month." "It’s okay, you’ll find someone better."