Long distance relationship!

I need some advice! My boyfriend and I have been boy friend and girl friend in a long distance relationship longer than we have been physically together. It has been easy until the past 2 days. I’m having the hardest time and feel so depressed and I have no clue why. It might be because Valentine’s Day is coming up, but I’m finding it hard to have a conversation with him (over text). We haven’t face timed in a couple weeks, since our schedules are really off. Today is our one month and he hasn’t said anything lol, it’s not that that important. But I look at all the small things. Recently there’s been no intimate text messages. I need advice if anyone’s been through this or sees a pattern. I’m kind of lost :/