Please help! My boyfriend's mom caught us sneaking in her house?

So me and my boyfriend have been together for 5 months but we didn't meet the parents yet. Yesterday he sneak me in his house at midnight so we can cuddle because we've been wanting to cuddle since forever. His mom caught us! At midnight! She was like "Who are you?" then he was like "I'm actually gonna give her a drive but we're just in here to get my keys". She looked shocked and confused and he asked "Are you okay mom?" and she said "No I'm not ok" then he said "I'll see ya in a bit mom" then he walked me out. I didn't say a word I was dead scared. What can I do now? Does this ruin my chance with him and having his parents like me? What can I do if I do finally meet his parents?
Please help! My boyfriend's mom caught us sneaking in her house?
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