Strange line with flopped top set heads up

[briachek]

Table 'Stromgrenia' Seat #2 is the button
Seat 1: csipcsup ($103.05 in chips)
Seat 2: webmonarch ($70.35 in chips)
Seat 3: thats my pot ($106.15 in chips)
Seat 6: briachek ($55.60 in chips)
Seat 8: kenygaby ($5.70 in chips)
Seat 9: RJSwirlz ($48.85 in chips)
thats my pot: posts small blind $0.25
briachek: posts big blind $0.50
*** HOLE CARDS ***
Dealt to briachek [Ah Ad Js Th]
kenygaby: folds
RJSwirlz: folds
csipcsup: folds
webmonarch: calls $0.50
thats my pot: folds
briachek: checks
*** FLOP *** [5d Ac 4h]
briachek: checks
webmonarch: bets $1.20
briachek: raises $3.60 to $4.80
webmonarch: calls $3.60
*** TURN *** [5d Ac 4h]
briachek: checks
webmonarch: bets $10.35
briachek: calls $10.35
*** RIVER *** [5d Ac 4h 5s]
briachek: bets $30
Mousemeat joins the table at seat #4
webmonarch: calls $30
*** SHOW DOWN ***
briachek: shows [Ah Ad Js Th] (a full house, Aces full of Fives)
webmonarch: mucks hand
briachek collected $88.55 from pot
*** SUMMARY ***
Total pot $91.55 | Rake $3
Board [5d Ac 4h 5s 3s]
Seat 2: webmonarch (button) mucked [5c As Jh 6h]
Seat 6: briachek (big blind) showed [Ah Ad Js Th] and won ($88.55) with a full house, Aces full of Fives

let me give some thinking here. I check raised the flop and he called which looks like I have the straight but he calls. Then the turn pairs the board so I check to make it seem like I'm scared of it. However, if i check raise, everything but A5 and 55 folds IMO. The river, I didn't want to take the chance of him checking behind so i full pot it thinking I make it seem like a buy, basically confuse him into calling. However, i didn't know he had A5 and surprised he didn't push in my last 10. Thoughts? Obviously if I knew he had A5, I would have raised the turn. Otherwise, assuming an unknown, is this a good line to extract? if not, what is?

[Ojingo]

[Felonius_Monk]

Seems like a mostly sensible line. I don't know what you think is "strange" about it.