[Perplexed Karen]

Ok, first off don't fake it. By doing so you are avoiding the problem and feeling bad about it.
Women have good days and bad days when it comes to sex, even when we want it sometimes our bodies just say "nope" and make it difficult.
Sometimes it's a short phase that happens randomly, other times it can be brought about from stress, nervousness, anger etc.
I wouldn't be surprised if you've been feeling some kind of stress given what is going on these days.
My suggestion is to not focus too much on sex and just try to be with him more often, become comfortable being with him again and move on from there. Perhaps change up your foreplay routine if you feel it's too fast or lacking.