Hand 1.
100/200...Villain has ~ 20k stack, Hero has ~16k stack
Villain opens in EP to 475, picks up 1 caller. Hero is on the button with

and 3-bets to 1800. Villain 4-bets to 4.5k. Flat caller folds.
Possible read...Villain is quite new to the table, seems like a solid player and has only played one hand where he flopped top set with TT and boated up on the river. I felt he acted in this hand very similarly to how he did in the Tens hand. This could just be him playing consistently, but felt it could also be strength.
I ended up sigh folding, as I felt Villain's range was strong (perhaps JJ+, AK), and had only committed 1.8k to the hand + didn't feel like I had a ton of fold equity. Is this fold too nitty?
Hand 2.
The very next hand Hero opens to 525 in the cutoff with

. Someone at the table comments "don't let that last hand affect you" (I had dwelled up a lot and made a fairly big deal of folding I guess)
Button 3-bets to 1700. Hero now has ~14k, Villain has ~12k
Possible read: We think we recognise the button from a previous tournament or something. Hero has been pretty active on the table, largely due to picking up a ridic large frequency of premium hands. Villain has been somewhere between quiet/semi-active, as far as I recall this is his first 3-bet.
Hero thinks about shoving, doesn't really consider folding (perhaps feel like he could be trying to pick up a pot against someone 'steam raising', plus this is cut-off vs button) but ends up flat calling.
Flop:

,

,

Hero checks, Villain bets 2.5k.
I felt villain was capable of c-betting whatever he may have 3-bet here and decide to commit to the hand.
I threw in a few of my larger denomination chips, intending to effectively show I was all-in. I'd kinda done this previously with a medium strength hand, so perhaps was trying to show a bit of weakness.
Villain moves all-in, and it turns out it is 5025 more to call.
Hero perhaps underestimated Villain's stack a little, I was always intending my raise to be an all-in kinda move and was never folding to a shove, BUT...
Villain gave the biggest Hollywood performance I've ever seen. Sighing twice, putting his hands on his head, before "reluctantly" moving all-in.
Obviously this is traditionally one of the biggest tells of strength, at least in my experience. Now I'm in a weird spot where there's a gazillion chips in the pot but I feel like I must be drawing to 10%. His Hollywood kinda threw me off because it was so ridiculously over the top, I almost thought it could be some weird reverse tell.
Hero would leave himself with 6k if he folds, but on the other hand does have a backdoor flush draw!
Thoughts on all parts of both hands would be appreciated, however brutal!